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8. Let f(x) = 3x + 2 and g(x) = x - 3. Find f(x) - g(x) and state its domain.
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8. Let f(x) = 3x + 2 and g(x) = x - 3. Find f(x) - g(x) and state its domain.
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Sep 24, 2017
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8. Let f(x) = 3x + 2 and g(x) = x - 3. Find f(x) - g(x) and state its domain.
Mathematics
high-school
Andreas Brunnet
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Andreas Brunnet
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1
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f(x) - g(x)
becomes
(3x + 2) - (x - 3)
which is
3x + 2 - x + 3
then add like terms
2x + 5
so
f(x) - g(x) = 2x + 5
and it's domain should be
all real numbers
WayneSan
answered
Sep 28, 2017
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WayneSan
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