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Question

Discriminant of the quadratic equation 5x2-33x-25=0 is


A

67

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B

76

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C

-67

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D

-76

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Solution

The correct option is A

67


Explanation for correct option:

Step1: Discriminant

For any quadratic equation,

ax2+bx+c=0

Discriminant is given by,D=b2-4ac

Step2: Finding discriminant of equation.

Given equation,

5x2-33x-25=0

Using the discriminant formula,

Here, b=-33,a=5,&c=-25

Therefore,

D=(-33)2-4×5×(-25)D=b2-4acD=40+27D=67

Hence, Correct option is (A).


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