How do you simplify 9x(7-4)^2+9? I'm willing to work and find the answer but I'm not sure how to get the answer?
Remember PEMDAS.
http://www.mathsisfun.com/operation-order-pemdas.html
Is x a multiplication sign or an unknown?
To simplify the expression 9x(7-4)^2 + 9, you need to follow the order of operations (also known as PEMDAS: Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction) to simplify it step by step.
Let's break it down:
Step 1: Simplify within the parentheses
Inside the parentheses, you have 7 - 4. And since subtraction is performed before multiplication, subtract 4 from 7 to get 3.
So, the expression becomes 9x(3)^2 + 9.
Step 2: Simplify the exponent
Next, raise 3 to the power of 2. Since 3 squared (3^2) is equal to 9, the expression becomes 9x(9) + 9.
Step 3: Perform the multiplication
Now, multiply 9x by 9. So, the expression becomes 81x + 9.
Step 4: Add the final term
Finally, add 9 to 81x to get the simplified expression: 81x + 9.
Therefore, the simplified form of 9x(7-4)^2 + 9 is 81x + 9.