Answer:
First Box: Factor by difference of squares
Second Box: It has all perfect squares
Third Box: see my work
Step-by-step explanation:
We have the equation 
Before we do anything, let us bring all of the terms to the left side
Now that we have moved the terms to one side, it is clear that we have a difference of squares.
-Work-
-
-
Answer:
24 - 27 = -3
<em>and if you meant 2/4 - 2/7 in scientic notation:</em>
<em />
<em>2/4 - 2/7 = 3/14</em>
HOPE THIS HELPS
Answer:
a = (-7)
Step-by-step explanation:
Firstly clear the bracket...,
-6(-2 + a) = 12 - 6a
Then substitute the simplified version in place of bracket...,
; 12 - 6a = 54
; -6a = 54 - 12
; -6a = 42...then divide both sides by (-6)
Therefore...., a = (-7)
You are given 2/3 angles to solve for x;
24+56 = 90
90 + x = 180
x = 90 degrees
