decompose8748
decompose8748
21-05-2018
Mathematics
contestada
How do you factor: #y= 2x^3 -32x #?
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altavistard
altavistard
21-05-2018
Which two factors are common to both terms of the given expression?
One of those factors is 2; the other is x.
Thus,
y= 2x^3 -32x = 2x(x^2-16)
Also note that x^2-16 is easily factorable:
y = 2x(x-4)(x+4) (answer)
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