What value will come in place of question mark (?) in the questions given below?
`(72)^2 xx 1.2 = ? +635.870`

Options

A. `5632.93`
B. ` 5734.73`
C. `5963.93`
D. `5584.93`

Answer

To solve the equation \( (72)^2 \times 1.2 = ? + 635.870 \), we will follow these steps:

### Step 1: Calculate \( (72)^2 \)
First, we need to find the square of 72.
\[ (72)^2 = 72 \times 72 = 5184 \]

**Hint:** Remember that squaring a number means multiplying it by itself.

### Step 2: Multiply the result by 1.2
Next, we multiply the result from Step 1 by 1.2.
\[ 5184 \times 1.2 = 6220.8 \]

**Hint:** To multiply by a decimal, you can treat it like a whole number and adjust the decimal place afterward.

### Step 3: Set up the equation
Now we substitute back into the equation:
\[ 6220.8 = ? + 635.870 \]

**Hint:** This equation states that the left side equals the right side, where the right side has a question mark.

### Step 4: Isolate the question mark
To find the value of the question mark, we need to isolate it. We do this by subtracting 635.870 from both sides:
\[ ? = 6220.8 - 635.870 \]

**Hint:** When isolating a variable, perform the same operation on both sides of the equation.

### Step 5: Perform the subtraction
Now we calculate the subtraction:
\[ ? = 6220.8 - 635.870 = 5584.93 \]

**Hint:** Ensure you line up the decimal points when performing subtraction for accuracy.

### Final Answer
Thus, the value that will come in place of the question mark (?) is:
\[ ? = 5584.93 \]

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