Question

Solve the equation?

Answer 1

Answer:

A. p = -4, p = 2.

Step-by-step explanation:

p^2 + 2p - 8 = 0

Using the quadratic formula;

p =  [-2 +/- √(2^2 - 4*1*-8)] / 2

= (-2 +/- √36) / 2

= (-2 +/- 6) / 2

= 4/2 , -8/2

= 2,  -4.

Answer 2

Answer:

A

Step-by-step explanation:

Given

p² + 2p - 8 = 0 ← in standard form

with a = 1, b = 2, c = - 8

Using the quadratic formula to solve for p

p = ( - 2 ± $\sqrt{2^2-(4(1)(-8))}$ / 2

  = ( - 2 ± $\sqrt{4+32}$ / 2

  = ( - 2 ± $\sqrt{36}$ ) / 2

p = $\frac{-2-6}{2}$ = $\frac{-8}{2}$ = - 4

p = $\frac{-2+6}{2}$ = $\frac{4}{2}$ = 2