Question

factorise a^2 + b^2/4 + c^2/9 +ab+bc/3+2/3 ca​

Answer 1

Step-by-step explanation:

= a^2 + b^2/4 + c^2/9 +ab+bc/3+2/3 ca

=(a)^2+(b/2)^2+(c/3)^2+2×a×b/2+2×b/2×c/3+2×c/3×a

=[.: (a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca]

=(a+b/2+c/3)^2

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