MATH 2043 Lecture Notes - Lecture 57: Sport Utility Vehicle

If the coefficients of x^3 and x^4 in the expansion of (1 + ax + bx^2)(1 - 2x)^18 in powers of x are both zero, then (a, b) is equal to (1) (16, 251/3) (2) (14, 251/3) (3) 14, 272/3) (4) (1, 272/3)