jika g(x)= (2x+3)(x-3), maka nilai g(0)-4g'(0) adalah

g(x) = (2x + 3)(x - 3)
= 2x^2 - 6x + 3x - 9
= 2x^2 - 3x - 9

g'(x) = 4x - 3

g(0) = -9
g'(0) = -3

g(0) - 4g'(0)
= -9 - 4(-3)
= -9 + 12
= 3