Evaluate: X-3^2 if x= 24

24 - 9

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To evaluate the expression X-3^2, we need to substitute the value of x, which is 24, into the expression. The expression involves an exponent, so we should calculate the exponent first.

Step 1: Evaluate the exponent.
3^2 means 3 raised to the power of 2. In this case, it is 3 multiplied by itself.
3^2 = 3 * 3 = 9

Step 2: Substitute the value of x into the expression.
Now that we have the value of the exponent, we can substitute x = 24 into the expression.
X-3^2 = 24 - 9 = 15

Therefore, when x = 24, X-3^2 evaluates to 15.