Question

(5x + 2)2 + 15x + 6 = 0

Answer 1

x = -0.4

Explanation:

(5x+2)2 + 15x + 6 = 0

10x + 4 + 15x + 6 = 0 Simplify

25x + 4 + 6 = 0

25x + 10 = 0 Subtract 10 from both sides

- 10 -10

25x = -10

25x/25 = -10/25 Divide by 25 on both sides

x = -0.4

Answer 2

Answer: X= -2/5

Explanation:

Distribute within the parenthesis

10x + 4 +15x + 6= 0

Combine like terms

25x + 10 = 0

Isolate x

25x =-10

x= -10/25= -2/5

Check your answer by plugging it in back into the equation.

(-2 +2) +15(-2/5) + 6 = 0

0 + (-6) + 6 = 0