Question

the solution set for x²+6x+9=0

Answer 1

x²+3x+3x+9=0
x(x+3)+3(x+3)=0
(x+3)(x+3)=0
x=-3
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thank u
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Answer 2

x^2+6x+9=0
(x+3)^2=0
(x+3)=0
x=-3