If f(x – 4) = x2 + 2x + 3, Find, f(2)

Explanation

f(x - 4) = x² + 2x + 3

To find f(2) = f(x - 4)

= f(2)

x - 4 = 2

x = 6

f(2) = 6² + 2(6) + 3

= 36 + 12 + 3

= 51