C and b , both can be a number multiplied by 10 to the power of -6
We can readily know the x^2-4x+4=3y then use it to replace the same function in the first equation which refers to the 3y+y^2-6y=0
y^2-3y=0
y(y-3)=0
y1=0 -----------y2=3
I got -2(2x-3) but it should be C.-4x-2
Answer:
perfect square sorry if wrong
Step-by-step explanation: