<h2>Steps:</h2>
So for this, I will be factoring by grouping. Firstly, factor x³ + 2x² and -4x - 8 separately. Make sure that they have the same quantity inside of the parentheses:
Now we can rewrite it as:
However, we aren't finished factoring yet. The first factor, x² - 4, can be factored further using the difference of squares. The difference of squares goes by the formula here: 
. In this case:
<h2>Answer:</h2>
<u>In short, the answer is 
</u>
5
To find the ratio you simply divide the value by the previous value
7.56/1.512 = 5
37.8/7.56 = 5
Answer:
Step-by-step explanation:
You didn't give any options so:
j+j+2k=
<em>Combine like terms</em>
2j+2k
Answer:
Step-by-step explanation:
The solution to a system of equations by graphing is found by graphing both equations on a coordinate plane. The solution is the point at which the lines intersect.
<u>First, put both equations in slope-intercept form:</u>
y = x + 4 Already in slope-intercept form
x - y = 1 Isolate y.
-y = -x + 1 Multiply both sides by -1.
y = x - 1
<u>Next, graph both lines:</u>
(See attachment)
In this situation, the lines don't intersect, meaning there is no solution to this system.
For these problems, all we have to do is find the value of the variables
7. r + 354 = 1,321
All we need to do is subtract 1,321 and 354
1,321 - 354 = 967
r = 967
8. d - 21.4 = 87.9
All we need to do is add 87.9 and 21.4
89.7 + 21.4 = 111.1
d = 111.1
9. 5 x g = 230
All we need to do is divide 230 by 5
230 ÷ 5 = 46
g = 46
10. z ÷ 12 = 9
All we have to do is multiply 12 and 9
12 x 9 = 108
z = 108
Hope this helps you
-AaronWiseIsBae
