Question

Perform the operations.
−5a^3 + 2a^3 − 8a^3

Answer 1

well, what would you do if the problem was

-5 + 2 - 8

?

add an subtract, right?

what would you do if it was

-5a + 2a - 8a

?

still, add and subtract. like:

-5a + 2a = -3a
-3a - 8a = -11a

now, what if the problem was

-5a^2 + 2a^2 - 8a^2

?

same thing again. add and subtract like terms

Answer 2

-11a^2? @funinabox

Answer 3

yep

Answer 4

thanks