JAMB - Mathematics (1982 - No. 14)
If f(x - 2) = 3\(x^2\) + 4x + 1. Find (1).
8
40
7
24
32
Giải thích
f(x - 2) = 3\(x^2\) + 4x + 1
x - 2 = 1 then x = 3
When x = 3, f(1) = 3(3)2 + 4 x 3 = 1
27 + 12 +1 = 40
x - 2 = 1 then x = 3
When x = 3, f(1) = 3(3)2 + 4 x 3 = 1
27 + 12 +1 = 40