prove
(x+y)^3=x^3+y^3+3xy(x+y)
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11
Answer:
Step-by-step explanation:
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Answered by
11
Answer: Hence proved
Step-by-step explanation:
(X+y)^3 = (x+y)(x+y)^2
Open brackets
(X+y)(x^2+2xy+y^2)
X^3 +2yx^2+xy^2 + y^3 + 2xy^2 + yx^2
X^3 + 3yx^2+3xy^2 + y^3
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