Factor. 3ab-6b^2-2bc+ac (Thank you, please explain all steps)
2 answers:
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Answer:
(- 2, 15 ) and (2, 7 )
Step-by-step explanation:
Given the 2 equations
y = 3x² - 2x - 1 → (1)
2x + y = 11 → (2) ← subtract 2x from both sides
y = 11 - 2x → (3)
Substitute y = 3x² - 2x - 1 into (3)
3x² - 2x - 1 = 11 - 2x ( subtract 11 - 2x from both sides )
3x² - 12 = 0 ( add 12 to both sides )
3x² = 12 ( divide both sides by 3 )
x² = 4 ( take the square root of both sides )
x = ± = ± 2
Substitute these values into (3) for corresponding values of y
x = - 2 : y = 11 - 2(- 2) = 11 + 4 = 15 ⇒ (- 2, 15 )
x = 2 : y = 11 - 2(2) = 11 - 4 = 7 ⇒ (2, 7 )
Choose two points on the hexagon that form a line. Plug the numbers into the distance formula and work it out. Because all the sides are equal, you only need to do this once. Hope this helped!
Answer:
p(x) = x⁴ +12x³ +48x² +64x
Step-by-step explanation:
If -4 is a zero, then (x -(-4)) = (x +4) is a factor. If its multiplicity is 3, then it is a factor 3 times. The other factor is (x-0) = x, so the function is ...
p(x) = x(x +4)³
Expanding gives ...
p(x) = x⁴ +12x³ +48x² +64x
