Question

if x=1 the root of the equation x square +4x-5=0?​

Answer 1

Step-by-step explanation:

x² + 4x -5 = 0

1² + 4×1 - 5 = 0?

1 + 4 -5 = 0

5-5 = 0

yes, x² + 4x - 5 = 0