Question

Add: (2ab+3a²) and (-5ba+4b)

Answer 1

(2ab+3a{2}) and (-5ba+b)

=2ab+3a{2} + (-5ba+b)

= 2ab+3a{2} + (-5ab+b)

= 2ab+3a{2} -5ab+4b

=-3ab+3a{2}+4b

=the answer is [-3ab+3a{2}+4b]

Answer 2

-10a^{2}b^{2}+8ab^{2}-15ba^{3}+12a^{2}b

Explanation:

1. use foil method : -10a^{2}b^{2}+8ab^{2}-15ba^{3}+12a^{2}b

2. arrange it if there is nothing to add or subtract : ??