Answers

2015-09-01T22:25:44+08:00
7x-28x-monomial
^
monomial

Combine them if it cannot then let it stay there and it will be come a binomial

7x-28x= (-21x)answer

#2
7x-30
Let is stay
(7x-30) answer

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2015-09-02T08:27:07+08:00
Ec method.ang Bagay Diyan. Pero Im Bot sure Kung yuon Nga
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