Q3/019) Find f(x) given that f(x+2)=x^2+7x+14

f(x+2)=x^2+7x+14

put x+ 2 = y => x = y- 2 to get
f(y) = (y-2)^2 + 7(y-2) + 14 = y^2 + 3y + 4 on expansion

put y =x to get

f(x) = x^2 + 3x + 4