You can
put this solution on YOUR website!
(-8x³ + x) - (-6x + 8 + 4x³)
Place a 1 in front of both parentheses:
1(-8x³ + x) - 1(-6x + 8 + 4x³)
Remove the parentheses by distributing the 1 and the -1 into
the parentheses:
-8x³ + 1x + 6x - 8 - 4x³
I'll color the like terms the same color:
-8x³ + 1x + 6x - 8 - 4x³
Combine the red terms and the blue terms:
-12x³ + 7x - 8
Edwin