Q. The function f is defined asf(x)=2x2−4x7.Find f(x+6).Write your answer without parentheses, and simplify it as much as possible.f(x+6)=□
Substitute x with (x+6): Substitute x with (x+6) in the function f(x). We need to replace every instance of x in the function with (x+6). f(x+6)=2(x+6)2−4(x+6)7
Expand and distribute in denominator: Expand the squares and the multiplication in the denominator.We will expand (x+6)2 and distribute the −4 across (x+6).f(x+6)=2(x2+12x+36)−4x−247
Distribute and combine like terms: Distribute the 2 in the denominator and combine like terms.Multiply each term inside the parentheses by 2 and then subtract 4x and 24.f(x+6)=2x2+24x+72−4x−247
Combine like terms: Combine like terms in the denominator.Add or subtract the coefficients of like terms in the denominator.f(x+6)=2x2+20x+487
Check for simplification: Check for any further simplification.The expression (7)/(2x2+20x+48) is already in its simplest form. There are no common factors to reduce the fraction further.
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