Question

Subtract: 7a³b-4a²b²+9 from 3a³b+2a²b²+7 proper solution​

Answer 1

Answer:

(12a−9ab+5b−3)−(4a−7ab+3b+12)

=(12a−4a)+(−9ab+7ab)+(5b−3b)+(−3−12)

=8a−2ab+2b−15

Answer 2

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