Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 7)(x2 + 1)
A. x = 0, touches the x-axis and turns around;
x = -7, crosses the x-axis;
x = -1, crosses the x-axis;
x = 1, crosses the x-axis;
B. x = 0, touches the x-axis and turns around;
x = -7, crosses the x-axis
C. x = 0, touches the x-axis and turns around;
x = 7, crosses the x-axis
D. x = 0, touches the x-axis and turns around;
x = -7, crosses the x-axis;
x = -1, touches the x-axis and turns around
Answer: B
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