03-02-2017
Mathematics

contestada

How do I combine like terms?

-28ab-35ab+12b^2-42b^2

^2 = squared

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03-02-2017

-28ab-35ab+12b^2-42b^2

add similar element=-28ab-35ab=-63ab
so that..
=-63ab+12b^2-42b^2
add similar element=12b^2-42b^2=-30b^2
=-63ab-30b^2

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