(x+y) ³+ (x-y) ³ simply the given question?
Deepika234:
(x+y)^3 +(x-y)^3 = x^3-y^3
Answers
Answered by
5
(x +y) ³ + (x-y) ³
= x³ +y³ +3xy(x+y) +x³ - y³ - 3xy(x-y)
=2x³ +3xy{(x+y) - (x-y)}
= 2x³ + 3xy(x+y-x+y)
=2x³ + 3xy × 2y
= 2x( x² +3y²)____(answer)
Hope this is ur required answer.
Proud to help you.
= x³ +y³ +3xy(x+y) +x³ - y³ - 3xy(x-y)
=2x³ +3xy{(x+y) - (x-y)}
= 2x³ + 3xy(x+y-x+y)
=2x³ + 3xy × 2y
= 2x( x² +3y²)____(answer)
Hope this is ur required answer.
Proud to help you.
Answered by
4
(x+y)³+(x-y)³.
(x+y+x-y) [(x-y)²-x+y(x-y)+(x-y)².
2x[(x+y)²-x²+2xy-y²+(x-y)².
2x[(x+y)²-(x+y)²+(x-y)².
2x[x²+y²+2xy-x²-y²-2xy+ (x-y)²
2x[(x-y)²].
2x[x²+y²-2xy]
2x³+2xy²-4x²y.
(x+y+x-y) [(x-y)²-x+y(x-y)+(x-y)².
2x[(x+y)²-x²+2xy-y²+(x-y)².
2x[(x+y)²-(x+y)²+(x-y)².
2x[x²+y²+2xy-x²-y²-2xy+ (x-y)²
2x[(x-y)²].
2x[x²+y²-2xy]
2x³+2xy²-4x²y.
Similar questions