Question

please answer for this questions​

Answer 1

x^2+12x+27

x^2+2×x×6+6^2-6^2+27

(x+6)^2-36+27=0

(x+6)^2-9=0

(x+6)^2=9

(x+6)=-√9 or +√9

x+6=-3 or 3

x=-3-6 or 3-6

x=-9 or -3

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