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:

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

$12x^3 - 2x$

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