Answer: 
<u>Step-by-step explanation:</u>
f(x) = 3x² + 10x - 8
g(x) = 3x² - 2x

Restriction on x: the denominator cannot be equal to zero. So,
x(3x - 2) ≠ 0
→ x ≠ 0 and 3x - 2 ≠ 0
3x ≠ 2
x 
All your answers look good!
Percent Change = New Value − Old Value|Old Value| × 100%
Example: There were 200 customers yesterday, and 240 today:
240 − 200|200|× 100% = 40200 × 100% = 20%
A 20% increase.
Percent Error = |Approximate Value − Exact Value||Exact Value| × 100%
Example: I thought 70 people would turn up to the concert, but in fact 80 did!
|70 − 80||80| × 100% = 1080 × 100% = 12.5%
I was in error by 12.5%
(Without using the absolute value, the error is −12.5%, meaning I under-estimated the value)
The difference between the two is that one states factual calculations and the other is a theoretical guess
What is the question supposed to be?
a corner of a cube connects 3 sides to each other,
then add the side of the cut
so it would have 4 sides