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12 January, 10:45

What is the value of the expression - 3x cubed when x = - 3

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  1. 12 January, 12:13
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    The answer is 729 because first you have to take - 3 times x, which in this case x is - 3. So - 3*-3 is 9 now take 9 and bring it to the third power, which is 729
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