Answer:
2.
x³+2x²+5x+10
x²(x+2)+5(x+2)
taking common
(x+2)(x²+5) is your answer
a³-a²b²-ab+b³
taking common
a²(a-b²)-b(a-b²)
taking common
(a-b²)(a²-b)
Answer:
StartFraction negative 4 minus 0 Over 0 minus 2 EndFraction
Step-by-step explanation:
Slope is the ratio of the difference of y-coordinates to the difference of the corresponding x-coordinates. For points (0, -4) and (2, 0) that can be ...
m = (-4-0)/(0-2) . . . . matches the 2nd choice
I'll focus on problem 19 and problem 22
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Problem 19
Answers:
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Explanation:
The horizontal lines are parallel. Note the arrow markers along the interior portion of the lines. These similar markers tell us how the lines pair up to be parallel to one another.
Since the horizontal lines are parallel, this means the angles in question are congruent. They are corresponding angles.
x+15 = 102
x = 102-15
x = 87
Which leads to
x+15 = 87+15 = 102
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Problem 22
Answer: y = 27
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Explanation:
We have a pair of alternate exterior angles. They are congruent due to the parallel lines.
Let's solve for y.
7y-55 = 3y+53
7y - 3y = 53+55
4y = 108
y = 108/4
y = 27
Factoring the common factor (n-3) from the terms on the left side, that left-side expression becomes
(2n^2-4)(n-3)
We presume your missing factor is
(2n^2-4)