8^2+9(12÷3×2)−7

8^2+9(4×2)−7
8^2+9(8)−7
64+72-7
...

thanks

To solve the expression 8^2 + 9(12 ÷ 3 × 2) − 7, we need to follow the order of operations (also known as PEMDAS/BODMAS) which states that we should perform operations in this order: parentheses, exponents, multiplication/division (from left to right), and finally addition/subtraction (from left to right).

Let's break down the expression step by step:

1. First, we need to evaluate any operations within parentheses. In this case, we have 12 ÷ 3 × 2.

To solve this, start by performing the division: 12 ÷ 3 = 4.

Then, multiply the result by 2: 4 × 2 = 8.

After evaluating the expression within the parentheses, we have 8^2 + 9(8) − 7.

2. Next, we calculate any exponents. In this case, 8^2 means raising 8 to the power of 2.

To do this, we multiply 8 by itself: 8 × 8 = 64.

After evaluating the exponent, we have 64 + 9(8) − 7.

3. Moving on to multiplication, we now have 9(8) to calculate.

To multiply, we multiply 9 by 8: 9 × 8 = 72.

After evaluating the multiplication, we have 64 + 72 − 7.

4. Finally, we perform the addition and subtraction operations from left to right.

Adding 64 and 72: 64 + 72 = 136.

Subtracting 7 from 136: 136 - 7 = 129.

Therefore, the final result of the expression 8^2 + 9(12 ÷ 3 × 2) − 7 is 129.