If A^2 + B^2 = 10 and AB = 10, what is the value of the expression (A - B)^2 + (A + B)^2?	Choose the correct choice from the following options
A) 10 B) 20 C) 30 D) 60 E) 70
(a-b)^2 = a^2 + b^2 - 2ab = 10-20= -10   (a+b)^2 = a^2 + b^2 + 2ab = 10+20= 
<gadget id="calculator">10+20</gadget>
<output>30</output>
30   so (a+b)^2 + (a-b)^2= 30 - 10= 
<gadget id="calculator">30 - 10</gadget>
<output>20</output>
20   20
<result>B</result>
If A^2 + B^2 = 10 and AB = 10, what is the value of the expression (A - B)^2 + (A + B)^2?