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irakobra [83]
3 years ago
11

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

Mathematics
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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