Question

2) Determine whether the values given against quadratic are the roots of the equation.
x2 + 4x – 5 = 0, x = 1,-1​

Answer 1

The roots of the quadratic equation is 1, -5

Step-by-step explanation:

x2 +4x - 5 = 0

x2 +5x + x - 5 =0

x(x+5) -1(x+5) =0

( x-1)(x+5) =0

x= 1 and x = -5