Question

(4j3 - 7j + 2s3 ) - ( - 12j3 - 8j )

Answer 1

Answer:

$-8j^3+j+2s^3$

Step-by-step explanation:

The trick here is to consider $j^3$, $j$, and $s^3$ as separate variables.

$(4j^3-7j+2s^3)-(-12j^3-8j)$

$4j^3-7j+2s^3+12j^3+8j$

$4j^3+12j^3-7j+8j+2s^3$

$16j^3+j+2s^3$