4 - 2(x + 3) = 5
4 - 2x - 6 = 5
-2x - 2 = 5
-2x = 5 + 2
-2x = 7
x = -7/2 or = -3 1/2
Because you know the area and that the shape is a square... if the side length is "s"... to find "s" you would say...
s²=1.69
Take the root of both sides and...
s=1.3 km
Do you mean cube root because the cube root of 24 is 2.88 and other repeating decimals
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>
