Answer:
Multiply by 2 because if 6÷3=2, same for 24÷12=2
Desmos comes in handy with these problems. Use the "FOIL" method for each of them and then plug them into the calculator of desmos. This will graph each other them. Note the x and y axis'
Example for (A) y= (x-2)(x+3) foil it:
x^2+3x-2x-6
x^2+x-6
plug that in and match to graph.
X = 4 , y = 2 , z=1 ,p=3 ,q=0
4qy / 8qx + yz = (4*0*2) / (8*3*4) + (2*1)
= (0) / (96) + (2) = 0 / 98 = 0