Question

Subtract these polynomials: (-6x - 2y + 8) - (2x + 2y + 6)

Answer 1

Removing the parenthesis would be the first step

(-6x - 2y + 8) - (2x + 2y + 6)

Now, see how you have minus 2x + 2y + 6? Well we multiply all that by -1, so all the signs will switch.

For example: -(1) = -1

So we have... -6x - 2y + 8 - 2x - 2y - 6

Now add like terms

-8x - 4y + 2...

Now you should be able to do the next one on your own.