Find the X-Intercepts of the Polynomial Function $$x ^ { 5 } - 14 x ^ { 3 } + 45 x = 0$$

question 164

Multiple Choice

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.
- $$x ^ { 5 } - 14 x ^ { 3 } + 45 x = 0$$

• A) 0 , touches the \(x\)-axis and turns around;
• 9 , touches the \(x\)-axis and turns around;
• 5 , touches the \(x\)-axis and turns around
• B) 0 , crosses the \(x\)-axis;
• 3 , crosses the \(x\)-axis;
• \(- 3\), crosses the \(x\)-axis;
• \(\sqrt { 5 }\), crosses the \(x\)-axis;
• \(- \sqrt { 5 }\), crosses the \(x\)-axis
• C) 0 , crosses the \(x\)-axis;
• 9 , touches the \(x\)-axis and turns around;
• 5 , touches the \(x\)-axis and turns around
• D) 0 , touches the \(x\)-axis and turns around;
• 3 , crosses the \(x\)-axis;
• \(- 3\), crosses the \(x\)-axis;
• \(\sqrt { 5 }\), crosses the \(x\)-axis;
• \(- \sqrt { 5 }\), crosses the \(x\)-axis

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