Question

What is the answer of 10a2b + ab2 – 10ab + 3a2b + 4ab – 7ab2

Answer 1

`10a^2b + ab^2 - 10ab + 3a^2b + 4ab - 7ab^2`

Combine like terms:

`= 13a^2b - 6ab - 6ab^2`

Take out common factor ab:

`= ab(13a - 6 - 6b)`

Answer 2

combine like terms

10a-10a+3a = 3a
2b+2b + 4b
ab2-10ab+4ab-7ab2 = - 18ab

answer: 3a + 4b + 18ab