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3 years ago

11

Factor the polynomial:3x^3-x^2-15x+5

1 answer:

lina2011 [118]3 years ago

6 0

(x^2-5)(3x-1)
Here's how I got this answer:
I found the GCF for each part of the polynomial.
3x^3 and -15x both contain 3x, and -x^2 and 5 share -1.
I then can divide the polynomial by 3x-1, and I get x^2-5
(Okay, that's not what I really did, but I can solve these on sight and don't remember the proper way to do it.)

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Read 2 more answers

What is the volume of a cylinder in cubic feet with a height of 8 feet and a base diameter of 18 feet

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The volume of a cylinder:

$V \approx 2035.75$ $ft^3$

Step-by-step explanation:

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$V = \pi (\frac{d}{2})^2 h$

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-Use the following diameter and height for the formula:

$V = \pi (\frac{18}{2})^2 8$

-Then, you solve:

$V = \pi (\frac{18}{2})^2 8$

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$V \approx 2035.75$ $ft^3$

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