Answer
$3+4[8(5\cdot5-20)-41]=-1$
Work Step by Step
$3+4[8(5\cdot5-20)-41]$
First, evaluate the operations inside the parentheses. Start by doing the product and after that, do the substraction:
$3+4[8(5\cdot5-20)-41]=3+4[8(25-20)-41]=...$
$...=3+4[8(5)-41]=...$
Now, evaluate the operations inside the brackets. Start by performing the product and then the substraction:
$...=3+4[40-41]=3+4[-1]=...$
Finally, evaluate the product and then the sum:
$...=3-4=-1$
