What is the result of substituting for y in the bottom equation?
y = x - 3
y=x²+2x-4
O A. y=(x-3)² + 2(x-3) - 4
B. (x-3)=x²
O c. y=x²+2x-4-(x-3)
D. x-3x2+2x-4
SUI ????
