Question

find the product -9y^2(y^4-7y^3-y^2+2y+5) can someone please help me to solve this please

Answer 1

\[-9y^2(y^4-7y^3-y^2+2y+5)\]\[= y^4 (-9y^2) -7y^3(-9y^2) -y^2 (-9y^2) +2y(-9y^2)+5 (-9y^2)\]\[= -9^{4+2} -7(-9) y^{3+2} - (-9)y^{2+2} + 2(-9)y^{1+2} -9y^2\]Can you simplify it?

Answer 2

-9y+63y^5+9y^4-18y^3-45y^2 ?

Answer 3

Oh... I made a mistake in my previous post :|
The last term there should be -45y^2 , which you've got it correct:)
The first term -> not correct
The rest are correct :)

Answer 4

so this is the correct answer

Answer 5

Nope ._.
The first term is not -9y
it's -9y^{4+2} =?

Answer 6

-9y^6

Answer 7

Yes :)
So the final answer is?

Answer 8

-9y^6+63y^5(y^4-18y^3-45y^2








=

Answer 9

Hmm... It is:
-9y^6+63y^5+9y^4-18y^3-45y^2

Answer 10

yes that is what i meant to put, sorry typo

Answer 11

can you help me with another one please

Answer 12

No problem :)

Answer 13

can you

Answer 14

Of course :)