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vu-4u+2vu-u

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2 Answers

* ^ means "to the power of"

v^2u-4u^2+2vu-u

 

You want to start by finding the variable/variables that go into every single term.

 

The common term in this example is u (it cannot be v because the term 4u^2 and u do not contain a v variable.)

 

u(v^2 - 4u + 2v - 1) is your answer. You can multiply it out to check your answer.

vu-4u+2vu-u

= vu+2vu-4u-u

=3vu-5u

=u(3v-5)