Answer:
A. A construction is a figure drawn using only a straightedge and a compass
Since its x + 3 we use -3
-3| 2 1 -8 21 (these are the # without the x)
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-6 15 -21
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2 -5 7 0
Drag the 2 down, multiple it by -3 to get -6
1+(-6) = -5. -5 * -3 =15 . 15+(-8) = 7
7*-3 = -21. -21 +21 = 0
Since last # is 0 we have a factor.
factor is 2x^2 -5x -7 (we start with a power 1 less the original.)
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Its 1/24 cubic centimetre.
Hope this helps.
x⁴ - 8x² = 0
x⁴ - 8x² + 16 = 0 + 16
x⁴ - 4x² - 4x² + 16 = 16
x²(x²) - x²(4) - 4(x²) + 4(4) = 16
x²(x² - 4) - 4(x² - 4) = 16
(x² - 4)(x² - 4) = 16
(x² - 4)² = 16
The answer is B.
Answer:
attached
Step-by-step explanation:
You should be able to do the 2nd problem yourself.
