Question

(x-y)(x²-2xy+y²) please help simplify

Answer 1

is that right?

Answer 2

@hartnn

Answer 3

@jdoe0001 @OrionsBelt

Answer 4

vishnu can u help me

Answer 5

you just distritube, and i already did that. i just wanna know if its right, and then i need to combine like terms.

Answer 6

Your second and fourth terms are off. The rest are correct.

Answer 7

ok

Answer 8

no wonder..

Answer 9

can someone help me thru the rest of the problem

Answer 10

so for the 2nd term, is it -2x^2y?

Answer 11

yes.

Answer 12

and the 4th one?

Answer 13

(x-y)(x^2 - 2xy + y^2)
= x(x^2 - 2xy + y^2) - y(x^2 - 2xy + y^2)
= x^3 - 2x^2y + xy^2 -x^2y + 2xy^2 - y^3
= x^3 - 3x^2y + 3xy^2 - y^3


alternative :
remember that x^2 - 2xy + y^2 = (x-y)^2
so,
(x-y)(x²-2xy+y²) = (x-y)(x-y)^2 = (x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3

Answer 14

fourth term is -x^2y

Answer 15

oh

Answer 16

wait thats what i wrote..

Answer 17

exponent 2 is missing in the fourth term.

Answer 18

oh nvm

Answer 19

thats what i wrote on my paper, i just made a typo on the drawing up there^

Answer 20

ok.

Answer 21

yea i just forgot the 2. thanks

Answer 22

change the second term to -2x^2y too. Then combine the like terms.

Answer 23

i did. thanks

Answer 24

you are welcome.