Question

factorise
1 - 4x - 4y - 5 (x + y)2

Answer 1

Answer:

$1 - 4x - 4y - 5(x + y)2 \\ = 1 - 4x - 4y - (5x + 5y)2 \\ = 1 - 4x - 4y - 10x - 10y \\ = 1 - 14x - 14y \\ \\ \\ answer$

I hope you anderstand ...

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Answer 2

Answer:

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Step-by-step explanation:

1-4x- 4y - 5(x-y)2

1- 4x - 4y - (5x + 5y)2

1- 4x -4y - 10x - 10y

1- 4x - 10x - 4y - 10y

1- - 14x - 14y