please solve this question.
And get 8 points and brainliest answer.
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Q-4 5ab+12b-(2ab-10b)
=5ab+12b-2ab+10b
=5ab-2ab+12b+10b
=3ab+22b
Q-4 12m-9n+5m-4n+10
= 12m+5m-9n-4n+10
=17m-13n+10
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