Options:
A. –3(x + 3)
B. 3(x + 3)
C. 3(–x – 3)
D. –3(x – 3)
Answer:
A and C
Step-by-step explanation:
Given
Required
Factorize
The options are not given; So, I'll answer on a general term
Express -9 as -3 * 3
Then factorize 3 out of the expression as:
Another way is to factor -3 out of the expression as:
Answer:
B. Square
Step-by-step explanation:
When in doubt, it can help to plot the points on a graph.
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By looking at the coordinate values, you see that the first two points have the same y-coordinate (0) and the other two points have the same y-coordinate (-4). These points are on horizontal lines that are 4 units apart.
Looking at the x-coordinates, you see that one pair of points has x-coordinates 4, and the other pair has x-coordinates 8. That is, these pairs of points are on vertical lines that are 4 units apart.
Vertical and horizontal lines are at right angles to each other. That means the figure must be a rectangle or square. The lengths of the sides are all 4 units, so the figure is a square.
