Question

x²–3x–2=0,Solve the given equation using the general formula.

Answer 1

This is the required solution

Answer 2

Solution :

Compare given Quadratic equation

x²-3x-2= 0 with ax²+bx+c= 0,we get

a = 1, b = -3 , c = -2

Discreminant (D) = b²-4ac

= (-3)² - 4×1×(-2)

= 9 + 8

D = 17

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We know the quadratic formula:

x = [ -b ± √D ]/(2a)
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x = [ -(-3) ± √17 ]/( 2 × 1 )

x = ( 3 ± √17 )/2

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