factorize x (a-3) y (3-a). please answer it's urgent
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x(a-3) + y(3-a) (I am assuming you forgot the addition sign)
Therefore,
x(a-3) + y(3-a)
= x(a-3) + y(-(a-3)
= x(a-3) - y(a-3)
= (a-3)(x-y)
Therefore,
x(a-3) + y(3-a)
= x(a-3) + y(-(a-3)
= x(a-3) - y(a-3)
= (a-3)(x-y)
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