SOLUTION: let f(x)=x^2+3x and g(x)=2x. If f(n)=28, what is the value of g(n)
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Question 388983: let f(x)=x^2+3x and g(x)=2x. If f(n)=28, what is the value of g(n)
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
, or .
(n + 7)(n - 4) = 0. Then n = -7 or n = 4. These give g(-7) = 2*-7 = -14, or g(4) = 2*4 = 8.
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