Question

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

Answer 1

-4a³b-2a²b²-2

Step-by-step explanation:

it is very easy you should know about that.

Answer 2

Answer:

$3 {a}^{3}b + 2 {a}^{2} {b}^{2} + 7$

$7 {a}^{3} b - 4 {a}^{2} {b}^{2} + 9$

(-) (+) (-)

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$4 {a}^{3} b + 6 {a}^{2} {b}^{2} - 2$