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3. What is the sum of the polynomial -(-ab + 3) and 4(-ab + 3)?

Sagot :

I've attached picture of me working out the problem!

A cool tip is using the FOIL method when multiply binomials!

FOIL stands for

First Terms

Outer Terms

Inner Terms

Last terms

And tells you what to multiply what

Hope I helped! Message me if you have questions !

View image gabby5792