Question

In your notebook, set up the following subtraction in a vertical format and select the correct answer. Find 2p 2 + 3p - 4 less - 2p 2 - 3p + 4.

Answer 1

Answer: the correct answer is 4p^2+6p-8

Answer 2

2p^2 + 3p - 4
- -2p^2 - 3p + 4
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Change the subtraction to an addition by changing the sign of every term of the second polynomial.

2p^2 + 3p - 4
+ 2p^2 + 3p - 4
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Now add like terms.

2p^2 + 3p - 4
+ 2p^2 + 3p - 4
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4p^2 + 6p - 8