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- Quadratic Eqn Quiz 6
- Quadratic Eqn Quiz 5
- Quadratic Eqn Quiz 4
- Quadratic Eqn Quiz 3
- Quadratic Eqn Quiz 2
- Quadratic Eqn Quiz 1

Important for :

1

A

2x

2x(x + 7) + 17(x + 7) = 0

(2x + 17)(x + 7) = 0

x = – | 17 | , –7 |

2 |

2y

2y(y + 9) + 19(y + 9) = 0

(2y + 19)(y + 9) = 0

y = – | 19 | , – 9 |

2 |

For x = – | 17 | , and y = – | 19 | , x > y |

2 | 2 |

For x = – | 17 | , and y = – 9 x > y |

2 |

For x = –7, and y = – | 19 | , – 9 x > y |

2 |

Therefore, x > y

Hence, option A is correct.

2

C

49x

7x(7x + 2) – 8(7x + 2) = 0

(7x – 8)(7x + 2) = 0

x = | 8 | , – | 2 |

7 | 7 |

7y

7y(y + 5) + 2(y + 5) = 0

(7y + 2)(y + 5) = 0

y = – | 2 | , – 5 |

7 |

For x = | 8 |
, and y = – |
2 | , – 5 x > y |

7 | 7 |

For x = – | 2 | , and y = – | 2 | , x = y |

7 | 7 |

For x = – | 2 | and y = – 5 x > y |

7 |

Therefore, x ≥ y

Hence, option C is correct.

3

B

x^{2} + 4x + 3x + 12 = 0

x(x + 4) + 3(x + 4) = 0

(x + 4)(x + 3) = 0

x = – 4, – 3

y^{2} – 5y + 3y – 15 = 0

y(y – 5) + 3(y – 5) = 0

(y – 5)(y + 3) = 0

y = 5, – 3

For x = – 4 and y = 5 or – 3 x < y

For x = –3, y = – 3, x = y

For x = – 3, y = 5, x < y

Therefore, x ≤ y

Hence, option B is correct.

4

D

x^{2} – 7x – 13x + 91 = 0

x(x – 7) – 13(x – 7) = 0

(x – 7)(x – 13) = 0

x = 7, 13

2y^{2} – 27y – 28y + 378 = 0

y(2y – 27) – 14(2y – 27) = 0

(y – 14)(2y – 27) = 0

y = 14, | 27 | = 13.5 |

2 |

For x = 7 or 13, and y = 14

x < y

For x = 7 or 13 and y = 13.5

x < y

Therefore, x < y

5

E

x^{2} + 9x + 5x + 45 = 0

x(x + 9) + 5(x + 9) = 0

(x + 5)(x + 9) = 0

x = – 5, – 9

y^{2} + 7y + 9y + 63 = 0

y(y + 7) + 9(y + 7) = 0

(y + 7)(y + 9) = 0

y = – 7, – 9

For x = – 5, and y = – 7 OR – 9 x > y

For x = – 9, and y = – 9, x = y

For x = – 9 and y = – 7, x < y

Therefore, relationship cannot be established

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Folks, here is a another quiz of Quadratic Equation, so we are going to discuss different kind of Quadratic Equation questions which are frequently asked in SBI PO Pre Exam, So Quadratic Equation have a lot of chance to appear in SBI PO Pre 2020.

First of all we discuss different kind of Quadratic Equation for SBI PO Pre 2020 like New pattern based Quadratic Equation Question and Answer that are now being asked in the exams are high level and it can be based on root based quadratic equation and general Quadratic Equation, find out the root values and then compare them and last but not the least Shri Dharcharya Rule based Quadratic Equation, Quadratic Equation is one of the most favorite topics of SBI PO Pre 2020. Questions on Quadratic Equations are asked in Quantitative Aptitude section. Generally, two quadratic equations in two different variables are given.

We have to solve both of the Quadratic equations to get to know the relation between both the variables.

Suppose we have two variables ‘x’ and ‘y’. The relationship between the variables can be any one of the following:

x > y

x < y

x = y or relation can’t be established between x & y

x ≥ y

x ≤ y

Meaning of different symbols, Before getting deep into the quadratic equations, lets try to understand the meaning of the basic operations used in finding the relationship between the variables –

(1) ‘>’ symbol: This symbol indicates that variable on the left side is definitely greater than the variable on the right side of the symbol.

(2) ‘<’ symbol: This symbol indicates that variable on the left is definitely smaller than the variable on the right side of the symbol.

For example: x<y means x is definitely smaller than y.

(3) ‘=’ symbol: This symbol indicates that variable on the left side is equal to the variable on the right side of the symbol.

(4) ‘≥’ symbol: This symbol indicates that variable on the left side is either greater than or equal to the variable on the right side of the symbol.

(5) ‘≤’ symbol: This symbol indicates that variable on the left side is either smaller than or equal to the variable on the right side of the symbol.

For example: x≤y means x is either smaller than y or equal to y.

General form of a Quadratic Equation

ax

Quadratic equation means that it will definitely have the maximum power of the variable as ‘2’ which means we will always see ax

Or we can say that b can be 0, c can be 0 but a will never be 0.

While solving quadratic equation, you will always get 2 values of the equation. These 2 values are called roots of the equation. The roots of the equation always satisfy the equation. So in case of doubt, we can check the solution by putting the values back into the equation. If the equation turns out to be zero then our roots are correct.

Here are different kind of example of Quadratic Equation , so that we will get a very clear concept of the basic formation of a quadratic equation to get prepared for SBI PO Pre 2020.

Here is the link to practice a proper quiz for quadratic equation for bank po pre exams like, SBI PO pre 2020, IBPS PO pre and LIC AAO.

Click Here for Quiz

Here is the link to Practice New Pattern Based Quadratic Equation for SBI PO PRE 2020

Click Here for SBI PO Pre Quiz

Here is the link of High level Quadratic equation for SBI PO Pre 2020 and Download PDF for Free so you can practice it office as well.

High Level Quadratic Click Here…

I hope these Quadratic equations will help you in upcoming SBI PO Pre 2020 exams, if you want to practice a Mock Test for SBI PO Pre Based on IBPS PO Pre 2020 link is below:

Testzone Provides Best test series for SBI PO and other Bank PO Exams, you will practice here all different kind of difficult level mock test with brilliant analytics. You will get 1 test of Previous year paper and other test of Parallel exam’s memory based test rest are with Difficult, Moderate and Easy Pattern based Test for all Bank and SSC Exams it Covers SBI PO PRE 2020, SBI PO, RBI Grade B, SSC CGL, SSC 10 plus 2, LIC, NIACL Assistant and NIACL Mains.