Question

x2 + 4x - 5 = 0; x = 1​

Answer 1

Step-by-step explanation:

what we have to do in this question

Answer 2

Step-by-step explanation:

x2 + 4x - 5 = 0

x = 1

Lhs

(1)² + 4×(1) -5

1 +4-5

5-5 =0

Lhs = Rhs

x =1 is a solution