Question

f(x) = x^2 - 8x + 19
Express f(x) in the form (x + a)^2 + b where 'a' and 'b' are constants.

Answer 1

Answer:

Here, f(x) = x^2-8x+19

or, f(x) = x^2-8x+16+3

or, f(x) = (x-4)^2 +3

where a = -4 and b = 3