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kicyunya [14]
3 years ago
6

(-3ab+7a-2) - (-9ab-4)

Mathematics
1 answer:
KonstantinChe [14]3 years ago
4 0
Given:
(-3ab+7a-2) - (-9ab-4)
Expand the expression using plus/minus rule.
-(-a)=a and -(a)=-a
=-3ab+7a-2 + 9ab +4
Add like terms
=6ab+7a+2

Answer: 6ab + 7a + 2
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