PEMDAS is a mnemonic that details the order in which mathematical operations should be performed. The correct expansion lists Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.

According to PEMDAS, multiplication is performed before addition. Multiplying 3 by 4 gives 12, and adding 2 results in 14.

Operations inside parentheses are calculated first, so 2 + 3 equals 5. Multiplying 5 by 4 gives a final answer of 20.

Addition and subtraction have the same precedence and are performed from left to right. Therefore, 6 - 4 is computed first.

Following PEMDAS, the exponent 3^2 is computed first to get 9. Then, adding 5 gives 14 and subtracting 1 results in 13.

First, calculate the exponent 3^2 to obtain 9, then subtract 1 to get 8. Multiplying 2 by 8 gives 16, and adding 8 results in 24.

Calculate the expressions within each set of parentheses first. (5 + 3) equals 8 and (2^3 - 3) equals 5, so multiplying 8 by 5 results in 40.

Start by evaluating the innermost parentheses: 2 + 3 equals 5. Multiplying 2 by 5 gives 10, and dividing 20 by 10 results in 2.

According to PEMDAS, multiplication is done before addition and subtraction. Multiplying 2 by 4 gives 8, then performing 7 - 3 results in 4, and adding 8 yields 12.

Start by computing the exponent: 4^2 equals 16. Subtracting 6 yields 10, and dividing by 2 gives the final answer of 5.

First, calculate 2^2 to get 4 and then add it to 4, yielding 8. Multiplying by 3 results in 24, which is the equivalent expression.

Division and multiplication should be performed from left to right. Dividing 12 by 3 gives 4, multiplying by 2 results in 8, and adding 5 gives 13.

Compute the operations inside the parentheses first: 15 - 3 equals 12 and 2 + 4 equals 6. Dividing 12 by 6 gives 2, and multiplying by 3 results in 6.

First, evaluate the exponent 3^2 to obtain 9. Then, subtracting 9 from the first 9 gives 0, and finally adding 4 results in 4.

Following the left-to-right rule for division and multiplication, first compute 2+2 to get 4. Then, 8 divided by 2 equals 4, and multiplying by 4 gives 16.

Begin by calculating 2^3 to get 8, then multiply by 3 and add 4 for the left part, resulting in 28. For the right, divide 6 by 2 to obtain 3 and add 5 to get 8; subtracting gives 20.

First, compute (3+2) to get 5 and square it to obtain 25, then subtract 4*2 (which is 8) from 25 to get 17. The denominator 3 - 1 equals 2, and dividing 17 by 2 gives 8.5.

Evaluate the innermost parentheses: (5 - 1) equals 4, and squaring it gives 16. Adding 2 results in 18, and multiplying by 3 gives 54. Finally, dividing 54 by 4 yields 13.5.

Start by calculating the exponent: 2^3 equals 8, then subtract 5 to get 3. Multiply 3 by 3 to obtain 9, and compute 6/(1+1) as 3. Adding 4 and 9 gives 13, and subtracting 3 results in 10.

Compute the exponent first: 3^2 equals 9, and subtracting from 9 gives 0. The second parentheses yields 2 + (4/2) = 2 + 2 = 4, but multiplying by 0 results in 0, and adding 7 gives the final answer of 7.