Question

12a + (-4a²) + (-15a) - 6a²

solution??​

Answer 1

Answer:

as you know

+ + = +

- - = +

- + = -

so

12a-4a²-15a-6a²

now collect like terms

12a-15a-4a²-6a²

−3a -10a²×²

-3a-10a⁴

-13a⁴

hope it's help you