Question

Simplify (8j3 + 3j2 + 7) − (3j3 − 7j2 − 7j − 12).

Answer 1

multiple choice?

Answer 2

or essay

Answer 3

ya

Answer 4

@ericanoel912 j is such that j^2=-1?

Answer 5

?

Answer 6

@ericanoel912 you have to subtract two polynomials?

Answer 7

algebra 2?

Answer 8

yes

Answer 9

(8j3 + 3j2 + 7)
-(3j3 − 7j2 − 7j − 12)
5j3 + 10j2 -7j +19

Answer 10

thats your answer

Answer 11

please, after eliminating the parenthesis, you have:
\[8j ^{3}+3j ^{2}+7-3j ^{3}+7j ^{2}+7j+12=5j ^{3}+10j ^{2}+7j+19\]

Answer 12

@Michele_Laino You are correct I forgot to change the sign for 7j

Answer 13

@AlondraAcosta don't worry! I'm sure you are a good student!