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Given 
f(x)=-x^(2)-12, find 
f(4)
Answer:

Given f(x)=x212 f(x)=-x^{2}-12 , find f(4) f(4) \newlineAnswer:

Full solution

Q. Given f(x)=x212 f(x)=-x^{2}-12 , find f(4) f(4) \newlineAnswer:
  1. Identify Function and Value: Identify the function and the value to be substituted into the function.\newlineThe function given is f(x)=x212f(x) = -x^{2} - 12, and we need to find the value of f(4)f(4).
  2. Substitute Value into Function: Substitute the value 44 into the function in place of xx.f(4)=(4)212f(4) = -(4)^{2} - 12
  3. Calculate Square of 44: Calculate the square of 44.42=164^{2} = 16
  4. Substitute Result into Function: Substitute the result from Step 33 into the function.\newlinef(4)=(16)12f(4) = -(16) - 12
  5. Multiply 1-1 by Square: Multiply 1-1 by the square of 44.(16)=16-\left(16\right) = -16
  6. Add Result to 12-12: Add the result from Step 55 to 12-12.\newlinef(4)=1612f(4) = -16 - 12
  7. Calculate Final Result: Calculate the final result. f(4)=28f(4) = -28

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