If x = -6 and y = -3, what is the value of 4(x-y)^2 - xy ?	Choose the correct choice from the following options:  A) 20  B) 18  C) 17  D) 22  E) 23
x = -6 and y = -3   x-y = -6 - (-3) = -6+3 = -3   x*y = -6 * -3= 
<gadget id="calculator">-6 * -3</gadget>
<output>18</output>
18   Now we apply it in the equation 4(x-y)^2 - xy=4 (-3)^2-18   ==&gt;4*9 -18 = 36-18= 
<gadget id="calculator">36-18</gadget>
<output>18</output>
18   Answer : 18
<result>B</result>
If x = -6 and y = -3, what is the value of 4(x-y)^2 - xy ?