Respuesta :

combine like terms

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

answer: 3a + 4b + 18ab
[tex]10a^2b + ab^2 - 10ab + 3a^2b + 4ab - 7ab^2 [/tex]

Combine like terms:
[tex]= 13a^2b - 6ab - 6ab^2 [/tex]

Take out common factor ab:
[tex]= ab(13a - 6 - 6b) [/tex]