3-9^2 - 4(3)^2 + 8 - 2 how do you solve this?
Just do the operations. The first step would be to rewrite it as
3 -81 -36 +8 -2
and then add up terms
I assume you meant 3 - 9^2 and not (3-9)^2 at the beginning. If you meant (3-9)^2, the answer is
36 -36 +8 -2 = 6
3-9^2 - 4(3)^2 + 8 - 2
= 3 - 81 - 36 + 8 - 2
= ........
To solve the given expression, you need to follow a specific order of operations called PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) to simplify it step by step. Here's how you can do it:
1. Evaluate any operations inside parentheses. In this case, there are no parentheses, so you can skip this step.
2. Solve any exponents or powers. Starting from left to right, evaluate any exponentiation. In this case, 9^2 (9 squared) is 81, so the expression becomes:
3 - 81 - 4(3)^2 + 8 - 2
3. Perform any multiplication and division operations. Next, evaluate multiplication from left to right. Multiply the 4 by 3^2, which is 9, resulting in:
3 - 81 - (4 * 9) + 8 - 2
Subsequently, multiply 4 by 9 to get 36:
3 - 81 - 36 + 8 - 2
4. Perform any addition and subtraction operations. Finally, perform addition and subtraction from left to right. First, subtract 81 from 3:
-78 - 36 + 8 - 2
Next, subtract 36 from -78:
-114 + 8 - 2
Then, add 8 and -114:
-106 - 2
Lastly, subtract 2 from -106:
-108
Therefore, the expression 3 - 9^2 - 4(3)^2 + 8 - 2 simplifies to -108.