If x = -2 and y = -4, what is the value of 5(x-y)^2 - xy ?  Choose the correct choice from the following choices
A) 12	B) 13	C) 15	D) 18	E) 22
x = -2 and y = -4   x-y = -2 - (-4) = -2+4= 
<gadget id="calculator">-2+4</gadget>
<output>2</output>
2   x*y= -2 * -4= 
<gadget id="calculator">-2 * -4</gadget>
<output>8</output>
8   Now we apply it in the equation 5(x-y)^2 - xy=5 (2)^2-8   ==&gt;5*4 -8 = 20-8= 
<gadget id="calculator">20-8</gadget>
<output>12</output>
12   12nswer : 12
<result>A</result>
If x = -2 and y = -4, what is the value of 5(x-y)^2 - xy ?