If f (x) = 2x^2 - 4x and g (x) = 5 - 2x, evaluate f (x) - g (x) for x = 5

Question

Mathematics

Tania Wright

20 January, 06:53

If f (x) = 2x^2 - 4x and g (x) = 5 - 2x, evaluate f (x) - g (x) for x = 5

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Answers (1)

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Jude Hester · Answer 1

If f (x) = 2x^2 - 4x and g (x) = 5 - 2x, evaluate f (x) - g (x) for x = 5

you first plug in 5 for x in both equations ...

(2 (5) ^2-4 (5)) = f (x)

5-2 (5) = g (x)

now you evaluate ...

(2 (25) - 20) - 5-10

50-30-15

20-15=5

Answer:

5