springwilliams0 springwilliams0

25-02-2018
Mathematics

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16 POINTS. Find x and y intercepts and show work.

I’m looking for number six.

16 POINTS Find x and y intercepts and show work Im looking for number six class=

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tynollette tynollette

25-02-2018

x^4-3x³+4x
x^4-3x³+3x+x
(x^4+x)-(3x³-3x)
x(x³+1)-3x(x²-1)
x(x+1)(x²-x+1)-3x(x+1)(x-1)
x(x+1)(x²-x+1-3x+3)
x(x+1)(x²-4x+4)
x(x+1)(x-2)(x-2)
so x intercepts are (0,0), (-1,0) and (2,0)
the y intercept is (0,0)

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