If 4XZ + YW = 10 and XW + YZ = 20, what is the value of the expression (2X + Y)(2Z + W)?
Choose the correct choice from the following choices
A) 9.	B) 12.	C) 15.	D) 50.	E) 18.
(2x+y)*(2z+w) = 10+2(20) =50   Answer : 50.
<result>D</result>
If 4XZ + YW = 10 and XW + YZ = 20, what is the value of the expression (2X + Y)(2Z + W)?