Answer: 4x^3 + x + 1
Step-by-step explanation: Combine like terms.
Hope this helps! :) ~Zane
Answer:

Step-by-step explanation:
i think
Do 50 multiplied by x = 8. Solve for x.
It would give you .16 which is 16%.
Answer:
<h2>D. (42 - 2x)(32 - 2x) = 900</h2>
Step-by-step explanation:
<em>Look at the picture.</em>
The dimensions of the picture:
(42 - 2x)in × (32 -2x)in
The formula of an area of a rectangle:
A = l · w
l - length, w - width
Substitute l = (42 - 2x), w = (32 - 2x) and A = 900
(42 - 2x)(32 - 2x) = 900