If 5log(4*5^2) = x, find x  Choices
A) 8  B) 6  C) 7  D) 10  E) 9
5(log2^2*5^2)=x   5log(5*2)^2=x   5*2log(5*2)= 
<gadget id="calculator">(5*2)</gadget>
<output>10</output>
x   10log10=x   log10 base 10=1   so   10*1=x   x=10   ANSWER:10
<result>D</result>
If 5log(4*5^2) = x, find x