Question

12a+[3ab−2{5ab^2+(a−b)+(a−b+c)}]

Answer 1

Answer:

13a+8ab+c

Step-by-step explanation:

From horzantional method. 12a[+(3ab+5ab) +(-2+2)+ a+ (-b+b) + c = 12a+8ab+a+c

Answer 2

Answer:8a + 3ab -10ab^2+4b-2c

Step-by-step explanation:12a+[3ab−2{5ab^2+(a−b+a-b+c)}

12a+[3ab−2{5ab^2+2a-2b+c}

12a+[3ab−10ab^2-4a+4b-2c}

8a + 3ab -10ab^2+4b-2c

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