Answer
$2+3[10(4\cdot5-16)-30]=32$
Work Step by Step
$2+3[10(4\cdot5-16)-30]$
Inside the parentheses, evaluate the product first and after that, the substraction:
$2+3[10(4\cdot5-16)-30]=2+3[10(20-16)-30]=...$
$...=2+3[10(4)-30]=...$
Now, inside the brackets, also evaluate the product first and after that, the substraction:
$...=2+3[40-30]=2+3(10)=...$
Finally, evaluate the product and then the sum:
$...=2+30=32$