Hi,  ·

The factor theorem states that a polynomial f(x) has a factor (x − k) if and only if f(k) = 0

y = (x+3)(x-3)(x-4), zeros are x = -3,3,4

y = (x+3)(x-3)(x-4) = (x^2-9)(x-4)= x^3 -4x^2-9x + 36   y-intercept is (0,36)



 

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