Question

simplify the expression 8^2 +9(12÷3*2) - 7 explain each of your steps.

Answer 1

8^2+9(12/3*2)-7

 do parenthesis first ( from left to right)

8^2 +9(8)-7

 do the ^2 and the multiplication next

64 +72 -7

do addition then subtraction

136-7 = 129