Question

Find the difference of (−5x2 − 4x3 − 3) − (9x3 + 3x − 8x2). Be sure to show all of your work in a neat and organized fashion

Answer 1

(−5x2 − 4x3 − 3) − (9x3 + 3x − 8x2)
=
(−5x2 − 4x3 − 3) + −1(9x3 + 3x − 8x2)

Answer 2

distribute the -1 then remove the brackets and find the difference

Answer 3

combine like terms right?

Answer 4

yes

Answer 5

sooo (−4 − 9)x^3 + (−5 + 8)x^2 − 3x − 3
= −13x^3 + 3x^2 − 3x − 3

Answer 6

Seems correct to me but to be sure paste the question into
wolframalpha.com

Answer 7

then look under alternate forms for your answer

Answer 8

ok

Answer 9

actually nevermind it just gives you an answer :)

Answer 10

lol so i got it right

Answer 11

yup

Gold Star