(7 - b) + (3b + 2)
Open the parentheses (this is a simple addition question so there's no need to do anything)
7 - b + 3b + 2
Rearrange (not necessary but makes it easier)
3b - b + 7 + 2
2b + 9
-T.B.
A parallelogram should have 2 sets of parallel lines. Let's find the slope of line PQ and RS to test.
PQ:
(4-2)/(1-(-3))
2/4
1/2
RS:
(2-0)/(3-1)
2/2
1
Because 1 does not equal 1/2 (the slopes are different) the lines are not parallel. Thus, the figure is not a parallelogram.
Answer:

Step-by-step explanation:
we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation


Complete the square . Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares
