Question

Solve following equation by using quadratic formula :-
(i) 2x2 + 7x + 5 2 = 0

Answer 1

Step-by-step explanation:

2×2+7x+52=0

4+7x+52= 0

4+7x= -52

7x= -52-4

7x= -56

x= -56÷7

x = -8

Now, put the value of x in the equation

2×2 + 7(-8) + 52 = 0

4 -56 + 52 = 0

56 - 56 = 0

0 = 0

Hence the value of x is (-8)