SOLUTION: (y^3+125)/(y+5)

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Question 115888:
(y^3+125)/(y+5)
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
FIRST YOU NEED TO DIVIDE (LONG DIVISION) (Y^3+125) BY (Y+5)
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(y^3+125)/(y+5)
(y+5)(y^2-5y+25)/(y+5) cancel out the (y+5) terms which leaves:
y^2-5y+25
now using the quadratic equation:
y+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
y=(5+-sqrt[-5^2-4*1*25])/2*1
y=(5+-sqrt[25-100])/2
y=(5+-sqrt-75)/2
y=(5+-8.66i)/2
y=(5+8.66i)/2
y=5/2+8.66i/2
y=2.5+4.33i answer.
y=(5-8.66i)/2
y=5/2-8.66i/2
y=2.5-4.33i answer.