Question 616310: What do the roots, (-7,0) (-3.0)(1,0)(5,0) of the equations: x^4+4x^3-34x^2-76x+105 tell me besides they are the x intercept?
Found 2 solutions by jim_thompson5910, ewatrrr:
Answer by jim_thompson5910(35256)   (Show Source):
Answer by ewatrrr(24785)  (Show Source):
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Hi,
x^4+4x^3-34x^2-76x+105 = (x+7)(x+3)(x-1)(x-5) = 0
roots, (-7,0) (-3.0)(1,0)(5,0)
Knowing the x-intercepts is an important tool in sketching the graph of the function
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