Answer:
30x^4−12x^3=6x^3(5x−2) = True
4x^2+10x=2x(2x+5) = True
100x^3+5=5x^3(20x+1) = False
8x^3−6x=2x^3(4−3x3) = False
Step-by-step explanation:


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Step-by-step explanation:

- <u>simplify</u><u> the</u><u> expression</u><u> </u><u>us</u><u>i</u><u>Ng the </u><u>symmetry</u><u> of</u><u> </u><u>trigonometry</u>
<u>
</u>
<h2>
<u>hope</u><u> it</u><u> helps</u></h2>
The value a is 7.
<h3>What is Straight Line?</h3>
A line is simply an object in geometry that is characterized under zero width object that extends on both sides. A straight line is just a line with no curves.
Here, the given equation of line
y = ax -3
line passing through point (2, 11), then
11 = a X 2 - 3
11 + 3 = 2a
2a = 14
a = 7
Thus, the value a is 7.
Learn more about Straight line from:
brainly.com/question/20492082
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Answer: 38° and 52°
Steps:
x + 38° = 90°
x = 90° - 38°
x = 52°
90° - 52° = 38°