Question

Which expression is equal to:
4b + 4c / z

a. 4(b + c) / z
b. 4b(4c / z)
c. 8bc / z
d. (b + c) ● (4+z)

(marking brainliest)

Answer 1

Answer: Choice A

4(b + c) / z

Reason:

We factor 4 from 4b+4c to get 4(b+c). The z in the denominator stays where it is. This factoring is possible because of the distributive property.

This is why $\frac{4b+4c}{z}$ is the same as $\frac{4(b+c)}{z}$

Side note: you should use parenthesis to write (4b+4c)/z, which indicates all of 4b+4c is over top the z. This is because 4b+4c/z might get mistaken for $4b+\frac{4c}{z}$