How do you find the sum or difference of #(2c^2+6c+4)+(5c^2-7)#?

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Answer 1 · 2017-05-24T23:49:21

#7c^2+6c-7#

See the explanation for the process.

The parentheses are unnecessary because the two expressions are being added, so you are finding the sum of the terms.

#2c^2+6c+4+5c^2-7#

Group like terms.

#(2c^2+5c^2)+(6c)-(7)#

Combine like terms.

#7c^2+6c-7#