JAMB - Mathematics (1985 - No. 23)
If f(x - 2) = 4x2 + x + 7, find f(1)
12
27
7
46
17
คำอธิบาย
f(x - 2) = 4x2 + x + 7
x - 2 = 1, x = 3
f(x - 2) = f(1)
= 4(3)2 + 3 + 7
= 36 + 10
= 46
x - 2 = 1, x = 3
f(x - 2) = f(1)
= 4(3)2 + 3 + 7
= 36 + 10
= 46