NOT TO SCALE The diagram shows the graph of $$\(y=3 x-x^{3}\)$$. The graph crosses the $$\(x\)$$-axis at $$\(A\)$$, at $$\(O\)$$ and at $$\(B\)$$. The turning points of the graph are at $$\(P\)$$ and at $$\(Q\)$$. Find the $$\(x\)$$-coordinate of $$\(A\)$$ and the $$\(x\)$$-coordinate of $$\(B\)$$. Give your answers as exact values. $$\(x\)$$-coordinate of $$\(A\)$$ ............................................ $$\(x\)$$-coordinate of $$\(B\)$$ ............................................

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