Perform the operation let f(x) =x²-5 and g(x) =5x+4,find (f-g)(5)
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Perform the operation let f(x) =x²-5 and g(x) =5x+4,find (f-g)(5)
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Answer:
f(x) = x² - 5
g(x) = 5x + 4
f(5) - g(5) = (x² - 5) - (5x + 4)
f(5) - g(5) = (5² - 5) - (5(5) + 4)
f(5) - g(5) = (25 - 5) - (25 + 4)
f(5) - g(5) = (20) - (29)
f(5) - g(5) = -9