Question

Rewrite in simplest terms:

−
5
s
−
7
(
8
s
−
1
)
−5s−7(8s−1)

Answer 1

If one −5s−7(8s−1): -61s+7

If two −5s−7(8s−1): -112s+14

Explanation:

-5s-7(8s-1)

Multiply -7 onto 8s and -1:

-5s-56s+7

add -5s and -56s:

-61s+7

−5s−7(8s−1)−5s−7(8s−1)

Multiply both -7 to 8s and -1

-5s-56s+7-5s-56s+7

add:

-112s+14