Evaluate
9x\left(391x-2\right)
Expand
3519x^{2}-18x
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60^{2}x^{2}-18x-\left(9x\right)^{2}
Expand \left(60x\right)^{2}.
3600x^{2}-18x-\left(9x\right)^{2}
Calculate 60 to the power of 2 and get 3600.
3600x^{2}-18x-9^{2}x^{2}
Expand \left(9x\right)^{2}.
3600x^{2}-18x-81x^{2}
Calculate 9 to the power of 2 and get 81.
3519x^{2}-18x
Combine 3600x^{2} and -81x^{2} to get 3519x^{2}.
60^{2}x^{2}-18x-\left(9x\right)^{2}
Expand \left(60x\right)^{2}.
3600x^{2}-18x-\left(9x\right)^{2}
Calculate 60 to the power of 2 and get 3600.
3600x^{2}-18x-9^{2}x^{2}
Expand \left(9x\right)^{2}.
3600x^{2}-18x-81x^{2}
Calculate 9 to the power of 2 and get 81.
3519x^{2}-18x
Combine 3600x^{2} and -81x^{2} to get 3519x^{2}.
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