westmoreland westmoreland

20-01-2018
Mathematics

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f (×)=2×-1 g (×)=3×^2-3× find f (-4) and g (-2)

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gustanika gustanika

20-01-2018

Find f(-4)
f(x) = 2x - 1
f(-4) = 2(-4) - 1
f(-4) = -8 - 1
f(-4) = -9

Find g(-2)
g(x) = 3x² - 3x
g(-2) = 3(-2)² - 3(-2)
g(-2) = 12 + 6
g(-2) = 18

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