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Find the x -intercepts 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)=-x³ (x+4)² (x-7)
A. 0 , crosses the x -axis; 4 , touches the x -axis and turns around; 7 , crosses the x -axis B. 0 , touches the x -axis and turns around; 4 , crosses the x -axis; 7 , crosses the x -axis C. 0. crosses the x -axis: -4 , touches the x -axis and turns around; 7 , crosses the x -axis D. 0 , touches the x -axis and turns around; -4 , touches the x -axis and turns around; 7 , crosses the x -axis
Sagot :
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