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Given the function 
f(x)=-4x^(2)+5, then what is 
f(x-2) as a simplified polynomial?
Answer:

Given the function f(x)=4x2+5 f(x)=-4 x^{2}+5 , then what is f(x2) f(x-2) as a simplified polynomial?\newlineAnswer:

Full solution

Q. Given the function f(x)=4x2+5 f(x)=-4 x^{2}+5 , then what is f(x2) f(x-2) as a simplified polynomial?\newlineAnswer:
  1. Substitute x2x-2: Substitute (x2)(x-2) for xx in the function f(x)=4x2+5f(x)=-4x^2+5.\newlinef(x2)=4(x2)2+5f(x-2) = -4(x-2)^2 + 5
  2. Expand square: Expand the square (x2)2(x-2)^2.(x2)2=x24x+4(x-2)^2 = x^2 - 4x + 4
  3. Substitute expanded square: Substitute the expanded square into the function.\newlinef(x2)=4(x24x+4)+5f(x-2) = -4(x^2 - 4x + 4) + 5
  4. Distribute 4-4: Distribute the 4-4 across the terms in the parentheses.\newlinef(x2)=4x2+16x16+5f(x-2) = -4x^2 + 16x - 16 + 5
  5. Combine constant terms: Combine the constant terms 16-16 and 55.f(x2)=4x2+16x11f(x-2) = -4x^2 + 16x - 11

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