Question

subtract 15a²+13b-16 from-12a²+20b-18​

Answer 1

Step-by-step explanation:

To subtract Polynomials, first reverse the sign of each term we are subtracting (in other words turn "+" into "-", and "-" into "+"), then add as usual. Note: After subtracting 2xy from 2xy we ended up with 0, so there is no need to mention the "xy" term any more.

Answer 2

-12a² + 20b - 18

15a² + 13b - 16 —

-27a²+ 7b - 2

or

-12a²+20b-18 – (15a²+13b-16 )

-12a²+20b-18 – 15a²-13b+16

-12a²-15a²+20b-13b-18+16

-27a²+7b-2

-27a²+7b-2

Hope this helps you!