Question

Which quadratic equation is equal to (x+2)^2+5(x+2)-6=0

Answer 1

Answer:

(x+2)^{2} +5(x+2)-6=0

Let

u=(x+2)

Substitute in the expression

(u)^{2} +5(u)-6=0

therefore

the answer is

(u)^{2} +5(u)-6=0 is equivalent to (x+2)^{2} +5(x+2)-6=0

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Answer 2

See attached for answer