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hailieamyanna hailieamyanna
  • 30-03-2016
  • Mathematics
Answered

If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

Verified Answer :

olemakpadu
olemakpadu olemakpadu
  • 30-03-2016

f(x) = 4 - x²    g(x) = 6x

(g - f)(x) = g(x) - f(x)

(g - f)(3) = g(3) - f(3)

g(x) = 6x

g(3) = 6*3 = 18

f(x) = 4 - x²

f(3) = 4 - 3² = 4 - 9 = -5

(g - f)(3) = g(3) - f(3) = 18 - (-5) = 18 + 5 = 23

 (g - f)(3) = 23

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