How do you combine like terms in #(5x ^ { 3} - 7x ) + ( 7x ^ { 3} + 5x )#?

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Answer 1 · 2017-03-22T21:02:42

See the entire solution process below:

First, remove the parenthesis:

#5x^3 - 7x + 7x^3 + 5x#

Next, group like terms:

#5x^3 + 7x^3 - 7x + 5x#

Now, combine like terms:

#(5 + 7)x^3 + (-7 + 5)x#

#12x^3 - 2x#