Question

Find the sum...
5a^2+6ab-4b^2
(+)7a^2+9ab+4b^2
--------------------

Answer 1

5a^2 + 7a^2 is?

Answer 2

12^4+15ab

Answer 3

5a^2 + 7a^2 is 12a^2 not 12a^4

Answer 4

so now I now not to add exponents thanks

Answer 5

yes you leave the exponents alone

Answer 6

so 12^2 + 15ab

Answer 7

if you mean 12a^2 instead of 12^2, then yes

Answer 8

@jim_thompson5910 Thanks alot :D

Answer 9

yw