Question

What will be the nature of roots of quadratic equation 4x2-12x-9?

Answer 1

◆ Quadratic Resolutions ◆

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Answer 2

Answer:

Roots are real and distinct.

Step-by-step explanation:

Given Quadratic equation :

4x²-12x-9 = 0 ,

compare this with ax²+bx+c=0, we get

a = 4 , b = -12 , c = -9

Now ,

Discreminant (D) =b²-4ac

= (-12)²-4×4×(-9)

= 144 + 144

= 288

> 0

Therefore,

D> 0

Roots are real and distinct.

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