one more...simplifying and the degree?

Question

(-6x^4+2x^2-x+2)-(4x^2-2x-8)
-should i factor by grouping on the first one??? Im confused ..


next problem : dividing w. neg exponents.

-24x^-6x^-6y^6/12x^2y^-3

Answer 1

(-6x^4 + 2x^2 - x + 2) - (4x^2 - 2x - 8)
-6x^4 + 2x^2 - x + 2 - 4x^2 + 2x + 8
-6x^4 + (2 - 4)x^2 + (-1 + 2)x + (2 + 8)
-6x^4 - 2x^2 + x + 10

The degree is 4

-------------------------------

(-24x^-6y^6)/(12x^2y^-3)
(-24/12) * x^(-6 - 2) * y^(6 - (-3))
-2 * x^(-8) * y^9
(-2y^9)/(x^8)

Answer 2

-10x^4-2x^2+x+10


rewrite the second one its slopy, put the paranthasis, and the powers so we can all understand it