How do you combine #9u ^ { 2} - 5u ^ { 2} - 8u ^ { 2} + 4u ^ { 2} - 2u ^ { 2} + 9u ^ { 2}#?

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Answer 1 · 2017-07-15T18:07:22

See a solution process below:

First, factor out the common #u^2# from each term:

#(9 - 5 - 8 + 4 - 2 + 9)u^2#

Now, calculate the term within the parenthesis:

#(4 - 8 + 4 - 2 + 9)u^2#

#(-4 + 4 - 2 + 9)u^2#

#(0 - 2 + 9)u^2#

#(-2 + 9)u^2#

#7u^2#