Question

What are the solutions to x2 + 8x + 7 = 0?

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x=-8 and x = -7
x=-7 and x=-1
x = 1 and x = 7
x = 7 and x = 8

Answer 1

x = - 1 and x = - 7

Explanation:

Given

x² + 8x + 7 = 0 ← in standard form

(x + 1)(x + 7) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x + 7 = 0 ⇒ x = - 7