Question

Factorise the following polynomial :


x^2-y^2-6x-6y factorising

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Answer 1

Step-by-step explanation:

x²-y²-6x-6y

=x-y(x+y)-6(x+y)

(x+y)(x-y-6)

there

x=-y

x-y=6

x+x=6

2x=6

x=3

=>y=-3