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If f(x)=x^2+x and g(x)=x-3, find f(g(7)).

If f(x)=x^2+x and g(x)=x-3, find f(g(7)).
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If f(x)=x^2+x and g(x)=x-3, find f(g(7)).

If f(x)=x^2+x and g(x)=x-3, find f(g(7)).-example-1
User Chau Giang
by
7.8k points

1 Answer

7 votes

Answer:

A. 20

Explanation:

  1. First we need find X.
  2. x = 7 (because we see question). f(g(7))
  3. Now we find g(x) = x - 3 => g(x) = 7 - 3
  4. Next we find f(x) = x² + x . We have f(4)
  5. f(4) = 4² + 4
  6. = 20

User Molerat
by
7.8k points
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