If a-b= 8 and a^2+b^2=164, find the value of ab  Choose the correct choice from the following choices:  A) 10  B) 12  C) 50  D) 18  E) 19
2ab = (a^2 + b^2) - (a - b)^2   = 164 - 64= 
<gadget id="calculator">164 - 64</gadget>
<output>100</output>
100=&gt; ab = 50   ANSWER: 50
<result>C</result>
If a-b= 8 and a^2+b^2=164, find the value of ab