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126x^{3}
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126x^{3}
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5^{3}x^{3}+x^{3}
Expand \left(5x\right)^{3}.
125x^{3}+x^{3}
Calculate 5 to the power of 3 and get 125.
126x^{3}
Combine 125x^{3} and x^{3} to get 126x^{3}.
5^{3}x^{3}+x^{3}
Expand \left(5x\right)^{3}.
125x^{3}+x^{3}
Calculate 5 to the power of 3 and get 125.
126x^{3}
Combine 125x^{3} and x^{3} to get 126x^{3}.
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