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Mathematics 15 Online
OpenStudy (anonymous):

2. If f(x) = 3x – 1 and g(x) = x2 – 2x – 2, what is f(g(x)) ? (1 point) x2 – 5x + 2 x2 + x – 3 3x2 – 6x – 7 3x2 – 5x – 3

OpenStudy (jtvatsim):

OK, so since f(g(x)) looks really weird, let's think of an easier example first and then we'll answer this harder question. Let's say that instead of needing to find f(g(x)) you wanted to find f(1), could you figure out what number f(1) would be?

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