(a+3)^2 +2(3-a)(a+3)+(3-a)^2

Question

(a+3)^2 +2(3-a)(a+3)+(3-a)^2

Answer 1

(а+3)^2+2(3-а)(а+3)+(3-а)=(а+3+3-а)^2=6^2=36

Answer 2

.(a+3)^2+2(3-a)(a+3)+(3-a)^2=(a+3+3-a)^2=(3+3)^2=6^2=36

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