What is the value of x if (64^2)-(36^2)=20*x? Choose the correct option:
A) 120 B) 100 C) 140 D) 130 E) 115
20*x=(64+36)(64-36)   20*x=100*28   x=(100*28)/20   x=5*28= 
<gadget id="calculator">5*28</gadget>
<output>140</output>
140   Option 140
<result>C</result>
What is the value of x if (64^2)-(36^2)=20*x?