Subtract. (6x4−2x2+8x−2)−(−x4+2x3−2x2−1)

   distributing the negative sign

           + x^4  - 2x^3 +2x^2 -0x +1

        6x^4 -0x^3  -2x^2 +8x -2

    +  x^4  - 2x^3 +2x^2 -0x +1

        7x^4 -2x^3+0x^2 +8x-1

lol.

it's ok we all do this sometimes.

-aparri

12.4, 12.387, 12.26, 12.252, 6.241, 6.2, 6.015, 6.009, 1.411, 1.2, 1.056, 1.007, 0.31,   0.13, 0.5, 0.04

step-by-step explanation:

ur welcome : )