Question

need help with polynomials:
(x+y)(8x^2-3xy+6y^2)

Answer 1

looks like this:
\[(x+y)(8x ^{2}-3xy+6y ^{2})\]

Answer 2

And?

Answer 3

i get confused when i distribute the letters

Answer 4

you want to multiply it all out, right?

Answer 5

yes

Answer 6

Well just take each term in the first bracket and multiply by every term in the second

Answer 7

x(8x^2-3xy+6y^2) + y(8x^2-3xy+6y^2)

Answer 8

it would be 8x^3-3x^2y+6xy^2+8x^2y-3xy^2+6y^3 when you multiply it out right?

Answer 9

I believe you:-) Add up like terms...

Answer 10

8x^3+6y^3+5x^2y+3xy^2

Answer 11

thats what i got the first time i did it but my homework said its wrong

Answer 12

That's the right answer.

Answer 13

Is this a computer test?

Answer 14

no its just homework

Answer 15

I mean, who is saying it's wrong?

Answer 16

oh my hw on the computer

Answer 17

Maybe you could try putting it in different order

8x^3 + 5x^y + 3xy^2 + 6y^3 (it's a sort of standard form)

Answer 18

8x^3 + 5x^2y + 3xy^2 + 6y^3

Answer 19

i got it thanks!

Answer 20

ur welcome