(x-y)2+2(x-y)(x+y)+(x+y)2
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Answered by
1
Step-by-step explanation:
(x-y)2+(x-y)(x+y)+(x+y)2
=(2x+2y) +2(x^2-y^2) +(2x+2y)
=2x+2y+2x^2-2y^2+2x+2y
=4x+4y+4x^2-4y^2
=4x(1+x)+4y(1-y)
Answered by
1
Answer:2x²-2y²+4x
Step-by-step explanation:
(x-y)2+2(x-y)(x+y)+(x+y)2
=2(x-y)+2(x²-y²)+2(x+y)
[since (a-b)(a+b)=a²-b²]
=2x-2y+2x²-2y²+2x+2y
=2x-2y+2x+2y+2x²-2y²
=4x+2x²-2y²
=2x²-2y²+4x
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