3x(x - 5)(x + 5)
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my bad its f(x) = 6000 - 75x
Combine like factors in this term by adding up all the exponents and copying the base.180xxy - 108xyy - 75xxxAnswer:180x^2 y - 108xy^2 - 75x^3
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Multiply all terms by a number (usually a power of 10) large enough to turn all decimal numbers into whole numbers. For example, take .4x = .75x - 2; multiply everything by 100 (102) to get 40x = 75x - 200. Obviously, this method won't work with irrational decimals such as pi.