Simplify: 8^2 + 9(12 / 3 * 2) - 7
8^2 + 9(12 / 3 * 2) - 7
64 + (9 * 2) - 7 = ?
PEMDAS
https://www.mathsisfun.com/operation-order-pemdas.html
The answer is 75
To simplify the given expression, you need to follow the order of operations, also known as PEMDAS. This acronym stands for Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction.
Let's simplify the expression step by step:
Step 1: Exponents
In this case, we only have one exponent: 8^2. This means we need to raise 8 to the power of 2, which is 8 multiplied by itself. The result is 64.
So, the expression becomes:
64 + 9(12 / 3 * 2) - 7
Step 2: Multiplication and Division
Next, we have 9 multiplied by the division of 12 by 3, which is then multiplied by 2. Let's calculate this part:
12 / 3 = 4
4 * 2 = 8
So, the expression becomes:
64 + 9(8) - 7
Step 3: Parentheses
Now, we can simplify the expression inside the parentheses. We need to multiply 9 by 8:
9 * 8 = 72
So, the expression becomes:
64 + 72 - 7
Step 4: Addition and Subtraction
Finally, we perform the addition and subtraction from left to right:
64 + 72 = 136
136 - 7 = 129
Thus, the simplified expression is 129.