Question

(x3-2x-6)-(2x3-x2+2x-3) ?. Remove parentheses and combine like terms:

Answer 1

-x^3 +x^2 -4x-3

Explanation:

(x^3-2x-6)-(2x^3-x^2+2x-3)

Distribute the minus sign

(x^3-2x-6)-2x^3+x^2-2x+3

I like to line them up vertically

x^3 -2x-6

-2x^3+x^2-2x+3

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-x^3 +x^2 -4x-3