see this question very important (x+y)3 - (x3+y3)
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(x+y)³ - (x³+y³)
= x³+y³+3xy(x+y) - (x³+y³)
= 3xy(x+y)
=3x²y+3xy²
= x³+y³+3xy(x+y) - (x³+y³)
= 3xy(x+y)
=3x²y+3xy²
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Hey!
Answer=>
(x+y)^3 -(x^3+y^3)
[ (x+y)^3= x^3+y^3+3xy(x+y)]
x^3+y^3+3xy(x+y) - (x^3+y^3)
x^3+y^3+3xy(x+y) - x^3-y^3
3xy(x+y)
3x^2 y+3xy^2
Hope it helps!
Answer=>
(x+y)^3 -(x^3+y^3)
[ (x+y)^3= x^3+y^3+3xy(x+y)]
x^3+y^3+3xy(x+y) - (x^3+y^3)
x^3+y^3+3xy(x+y) - x^3-y^3
3xy(x+y)
3x^2 y+3xy^2
Hope it helps!
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