Question

factorise the expression

Answer 1

Answer:

$2x ^{2} + 4xy +2y^{2} - 9x - 9y-5$

Step-by-step explanation:

See attached worked example.

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Answer 2

STEP BY STEP EXPLANATION-

Using identity, (a+b)^2 = a^2 + 2(ab) + b^2

So,

= 2 (x^2 + 2xy + y^2) - 9 (x+y) - 5

= 2x^2 + 4xy + 2y^2 - 9x + 9y - 5

I hope it helped...

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