Multiply the following:
(2x – 2y - 3), (x + y + 5)
The multiplication is as follows:
(2x-2y-3)×(x + y + 5)
= 2x.x + 2x.y + 2x.5-2y.x-2y.y-2y.5-3.x-3.y-3.5
= 2x2 + 2xy + 10x-2xy-2y2-10y-3x-3y-15
= 2x2-2y2 + 7x-7y-15
The product is = 2x2-2y2 + 7x-7y-15
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