Answer:
x = - 7, x = - 1
Step-by-step explanation:
Assuming you require the expression solved.
To solve, equate to zero
x² + 8x + 7 = 0 ← in standard form
(x + 7)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 7 = 0 ⇒ x = - 7
x + 1 = 0 ⇒ x = - 1
