Question

7x^2+6x^4-2x^2-x^4-5x^2

Answer 1

what are you being asked to do with this?

Answer 2

collect like terms

Answer 3

ok let me rewrite it and we can take a look

Answer 4

\[7x^{2}+6x^{4}-2x^{2}-x^{4}-5x^{2}\]
something that always helped me with this is to first move thing around by the highest to lowest exponent.

Answer 5

ok

Answer 6

so it would look like this:
\[6x^{4}-x^{4}+7x^{2}-5x^{2}-2x^{2}\]
so this is what i have done. now combine like terms

Answer 7

its the same thing as this:
\[x^{4}(6-1)+x^{2}(7-5-2)\]

Answer 8

\[5 x^4 \]