30 pts ! find the solution(s) for x in the equation below.
x^2 + 7x = 8

C

Step-by-step explanation:

Given

x² + 7x = 8 ( subtract 8 from both sides )

x² + 7x - 8 = 0

Consider the factors of the constant term (- 8) which sum to give the coefficient of the x- term (+ 7)

The factors are + 8 and - 1, since

8 × - 1 = - 8 and 8 - 1 = 7, thus

(x + 8)(x - 1) = 0

Equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

x + 8 = 0 ⇒ x = - 8

Solutions are x = 1 ; x = - 8 → C

Here

C will be correct answer

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

explanation:

step-by-step explanation: