Any expressions that equal 13? needs to follow rule of PEMDAS . (You must use all the basic operations at least once.) (And at least three sets of parentheses. You can use exponents if you want.) Plz Help :/
3^2 + 4 = 13
(6/2)^2 + (5-1) = 13
maybe you can work that a bit more to include * and more ()
Thx for helping. :)
To find expressions that equal 13 following the rule of PEMDAS and using all the basic operations at least once, you can try the following steps:
1. Start with addition: Try adding numbers together to get 13.
- Example: 5 + 8 = 13
2. If addition doesn't work, move on to subtraction: Try subtracting numbers to get 13.
- Example: 20 - 7 = 13
3. If addition and subtraction don't work, move on to multiplication: Try multiplying numbers to get 13.
- Example: 1 * 13 = 13 (Note that multiplying by 1 doesn't change the value)
4. If addition, subtraction, and multiplication don't work, move on to division: Try dividing numbers to get 13.
- Example: 26 / 2 = 13
5. If none of the above operations work, move on to exponents: Try raising numbers to specific powers to get 13.
- Example: 13^1 = 13 (Raising 13 to the power of 1 just gives back 13)
Remember, you must use all the basic operations at least once. So we will use parentheses to combine the above operations creatively. Here's an example expression using all operations at least once to get 13:
- (((5 + 8) * 20) - (26 / 2)) = 13
You can also experiment with different numbers and parentheses arrangements to find other valid expressions that equal 13 using PEMDAS.