Question

Simplify the expression 82 + 9 (12: 3 x 2) – 7.

Explain each of your steps.

Answer 1

129

Explanation:

8^2 + 9 (12/3 x 2) -7 Parentheses first 12 : 3 is the same as 12/3

8^2 + 9 (4x2)-7 Parentheses:

8^2 + 9 (8) - 7 Exponent 8 x 8:

64 + 9(8) - 7 Multiply:

64 + 72- 7 Add :

136 - 7 Subtract:

129

The answer is 129.

Hope this helps :)