Final answer:
The expression (72)(7-4)7^1 evaluates to 1512 according to the BIDMAS rule of performing calculations in mathematics.
Step-by-step explanation:
To evaluate the expression (72)(7-4)7^1, we must first perform the calculation in the brackets. This follows the BIDMAS or PEMDAS principle of mathematics which stands for Brackets/ Parentheses, Indices/ Exponents, Division and Multiplication (from left to right), Addition and Subtraction (from left to right).
So, (7-4) equals 3. Now our equation is (72)(3)7^1.
Let's multiply 72 by 3. This equals 216. Our equation now becomes 216*7^1.
Here, 7^1 equals 7. Now we multiply 216 by 7, this gives us 1512.
So, the direct answer in two lines is: (72)(7-4)7^1 evaluates to 1512. None of the provided options (A. 73 B. 216 C. 504 D. 7) are correct.
Learn more about BIDMAS principle