Question

Solve (x+4)2 – 3(x + 4) – 3 = 0 using substitution.
u=

Answer 1

Explanation:

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

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

-1x-4-3=0

-1x-7=0

-1x=7

x=7/-1

x=-7

Answer 2

u= x + 4

Explanation:

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