Find the sum of the square of 3.5 and the product of 0.2 and the square of 0.2.

Answer: 12.25812.258

Step-by-step solution

Step 1: Calculate the square of 3.5

We begin by evaluating the first term, which is the square of 3.53.5. Multiplying 3535 by 3535 gives 12251225, so placing two decimal places yields 12.2512.25.

Step 2: Calculate the square of 0.2

Next, we find the square of 0.20.2. Since 2×2=42 \times 2 = 4, with two decimal digits the result is 0.040.04.

Step 3: Calculate the product of 0.2 and the square of 0.2

Now, multiply 0.20.2 by the square we just found, which is 0.040.04. Multiplying gives (0.2)3=0.008(0.2)^3 = 0.008 with three decimal places.

Step 4: Find the sum of the two quantities

Finally, we add the two calculated values together: 12.25+0.008=12.25812.25 + 0.008 = 12.258.

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