Answer
-21.6$z^{3}$-2z+2
Work Step by Step
(-12.7$z^{3}$-14z)+(-8.9$z^{3}$+12z+2)
=-12.7$z^{3}$-14z-8.9$z^{3}$+12z+2
=-12.7$z^{3}$-8.9$z^{3}$-14z+12z+2
=-21.6$z^{3}$-2z+2
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.