8x^3y+8x^y+2x^-y+4x^y+4x^-y+x^-3y
What do I do with the exponents?
Can someone please help me on this question or help me get started.
(2x^y+x^-y)^3
= (2x^y+x^-y)(2x^y+x^-y)(2x^y+x^-y)
= ???
Now what do I do next?
please help and thank you
4 answers
Is this correct so far?
is this the right answer?
20x^5y+7x^-5y
What do you do with the negative exponent? Do you just leave it how it is?
20x^5y+7x^-5y
What do you do with the negative exponent? Do you just leave it how it is?
correct so far
all you have to do is collect your like terms
you have 8x^y + 4x^y which is 12x^y
and 2x^-y + 4x^-y which is 6x^-y
= 8x^(3y) + 12x^y + 6x^-y + y^(-3y)
all you have to do is collect your like terms
you have 8x^y + 4x^y which is 12x^y
and 2x^-y + 4x^-y which is 6x^-y
= 8x^(3y) + 12x^y + 6x^-y + y^(-3y)
1 answer