SOLUTION: List the intercepts and test for symmetry: y= x^3+x^2-64x-64

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Question 516644: List the intercepts and test for symmetry:
y= x^3+x^2-64x-64
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
y= x^3+x^2-64x-64
.
y= (x^3 -64x) +x^2-64
.
y = x(x^2 -64) + x^2 -64
y = x(x+8)(x-8) +(x-8)(x+8)
y = (x+1)(x+8)(x-8)
.
Looking at the graph:
.
+graph%28500%2C500%2C-10%2C10%2C-260%2C200%2Cx%5E3%2Bx%5E2-64x-65%29+