Distribute
4x(2x^2-4x+5)-5x(2x+6)
8x^3-16x^2+20x-10x^3-30x
Combine Like Terms
-2x^3-16^2+20x-30x
Combine like terms
-2x^3-16x^2 +20x-30x
-2x^3-16x^2-10x
Common factor
Factor by grouping
-2x^3 - 16x^2-10x
Find one factor
-2(x^3+8x^2+5x)
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