If f (x) = 3x2 - 2 and g (x) = 2x + 4, find (f - g) (x).

A. 3x2 - 2x - 6

B. 2x - 3x2 - 2

C. 3x2 - 2x + 2

D. x2 + 2

Mathematics and science and spelling

Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of synthetic oil. If 255 liters of natural oil are used, how many liters of Petrolyn oil will be made?

Which expression is equal to 9/√45? A. 3√3 / 5 B. 3√5 / 5 C. √5 D. 3√3

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How to solve - 5x=9-2x

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