Question

Find the difference (4a^3-2a+1)-(a^3-2a+3)

Answer 1

3a^3 -2

Explanation:

(4a^3-2a+1)-(a^3-2a+3)

Distribute the minus sign

(4a^3-2a+1)-a^3+2a-3

Line up the terms vertically

(4a^3-2a+1)

-a^3+2a -3

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3a^3 +0a -2

3a^3 -2