We need to solve this mathematical expression. The numerator contains powers and multiplication, while the denominator is a simple subtraction. Let's work through this systematically using the order of operations.
Let's start by evaluating the denominator. We have 3 minus 4, which equals negative 1. This is straightforward subtraction, and we get negative 1 as our denominator.
Now we need to evaluate all the exponents in the numerator. Following the order of operations, we calculate exponents first. Seven squared equals 49, two squared equals 4, five squared equals 25, and three squared equals 9.
Now we substitute the exponent values into the numerator. We get 49 plus 4 times 25 plus 9. Following order of operations, we multiply first: 4 times 25 equals 100. Then we add from left to right: 49 plus 100 equals 149, then 149 plus 9 equals 158. So our numerator is 158.
Finally, we divide the numerator by the denominator. We have 158 divided by negative 1, which equals negative 158. Therefore, the answer to our original expression is negative 158.