2 years ago

Solve (x + 4)2 – 3(x + 4) – 3 = 0 using substitution. u = x + 4 Select the solution(s) of the original equation.

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

6 0

Answer:

-7

Step-by-step explanation:

2(x+4)-3(x+4)-3=0

2x+8-3x-12-3=0

-x+8-15=0

-x-7=0

+7 +7

-x=7

/-1 /-1

x=-7

hope it helps

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