Hello,
Degre 5==> even number of imaginary roots and odd number of reals.
Real roots must be a divisor of 7.
Using Excel, we find
<span>
<span><span>
x
P(x)
</span><span>-7
0
</span>
<span>
-6
1369
</span>
<span>
-5
1352
</span>
<span>
-4
867
</span>
<span>
-3
400
</span>
<span>
-2
125
</span>
<span>
-1
24
</span><span>0
7
</span><span>1
32
</span><span>2
225
</span><span>3
1000
</span><span>4
3179
</span><span>5
8112
</span><span>6
17797
</span><span>7
35000
So: one real root: 7 and 4 imaginary roots.
Answer B
</span></span></span>
<h3>
Answer: Choice 2. 
</h3>
=====================================================
Explanation:
The rule is that if
for some positive number k, then it can be written as the compound inequality
. This is a shorthand way of writing the two inequalities
combined together.
note:
is the same as 
From here, we replace k with 3
Therefore,
turns into
which breaks down further to 
The keyword "and" is important as we can't pick one or the other. We must pick both
and also 
Answer:
2
Step-by-step explanation:
x times x is x^2
Answer:
-8x^2+x+2
Step-by-step explanation:
Lake Superior is larger than Lake Victoria by 4,872 square miles.