Final answer:
To solve the expression, subtract 4.8 squared from 7.12, subtract 2 multiplied by 2, and then subtract the two results.
Step-by-step explanation:
To calculate the expression (7.12-4.8²)-2*2, we begin by simplifying the exponent. 4.8 squared is 4.8 multiplied by itself, so 4.8² equals 23.04. Now, we substitute this value back into the equation: (7.12-23.04)-2*2. Next, we perform the multiplication and subtraction operations in the parentheses, which gives us (-15.92)-4. Finally, we subtract 4 from -15.92, resulting in the final answer of -19.92.
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