If x^2=3x+1, then x^3 = ?	Choose the correct option
A) 8x+2
B) 10x+3
C) 6x+1
D) 2x+3
E) 6x+4
x^2 = 3x+1   x^3 = x*x^2 = x*(3x+1) = 3x^2 + x = 3(3x+1)+x = 10x+3   The answer is 10x+3.
<result>B</result>
If x^2=3x+1, then x^3 = ?