Factorise the following using appropriate identities 9x2 6xy y2

Asked by admin @ 16/08/2021 in Math viewed by 307 People

Factorise 9x^2 + 6xy + y^2

Answered by admin @ 16/08/2021

9x^2 + 6xy + y^2
= (3x)^2 + 2×3x×y + (y)^2
= (a)^2 +2×a×b + (b)^2 = (a+b)^2
= (3x + y)^2
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