Note: The expression is missing. Consider the expression is 
.
Given:
The expression is
To find:
Factor form of the given expression by using GCF.
Solution:
We have,
Factors of each term:
The common factors are 2, 2 and 2. So,
Taking out the greater common factor (GCF) in the given expression, we get
Therefore, the required expression is 
and the correct option is C.
10
Expand
(
2
−
i
)
(
4
+
2
i
)
(
2
-
i
)
(
4
+
2
i
)
using the FOIL Method.
Tap for fewer steps...
Apply the distributive property.
2
(
4
+
2
i
)
−
i
(
4
+
2
i
)
2
(
4
+
2
i
)
-
i
(
4
+
2
i
)
Apply the distributive property.
2
⋅
4
+
2
(
2
i
)
−
i
(
4
+
2
i
)
2
⋅
4
+
2
(
2
i
)
-
i
(
4
+
2
i
)
Apply the distributive property.
2
⋅
4
+
2
(
2
i
)
−
i
⋅
4
−
i
(
2
i
)
2
⋅
4
+
2
(
2
i
)
-
i
⋅
4
-
i
(
2
i
)
Simplify and combine like terms.
Tap for fewer steps...
Simplify each term.
Tap for more steps...
8
+
4
i
−
4
i
+
2
8
+
4
i
-
4
i
+
2
Add
8
8
and
2
2
.
10
+
4
i
−
4
i
10
+
4
i
-
4
i
Subtract
4
i
4
i
from
4
i
4
i
.
10
+
0
10
+
0
Add
10
10
and
0
0
.
Answer:
(x,y) across the y axis is (-x,y)
Step-by-step explanation:
When reflected across the y-axis, the x coordinate in the opposite.
40:1,2,4,5,8,10,20,40
60:1,2,3,4,5,6,10,12,15,20,30,60
The GCF between 40 and 60 is 20
If 10% was added to the total (100%), then subtract 10% from 17.85.
17.85 * 0.1 = 1.785
17.85 - 1.785 = 16.065
$16.07
