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addition and subtraction of polynomials 1. 3ab +(- 10ab) 2. (4a - 4b) + ( 2a + 6b ) 3. (-11m + 7) - (20m - 11) 4. (2m- 2n ) -( -15 m + 10n) 5. -6xy- (-16xy) plz pa answer ASAP show
solution step-by-step

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Step-by-step explanation:

1. 3ab +(-10ab)

-7ab

2.4a -4b

4 (a-b)

3.(-11m+7) -(20m-11)

-11m+7-20m+11

-31m+18

4.(2m-2n)-(15m+10n)

-13m-12n

5.-6xy- (-16xy)

-6xy+16xy

10xy

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