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Answer:
n² -3
Step-by-step explanation:
The square of a number is found by multiplying it by itself. The square of a number in an algebraic expression is shown using an exponent of 2. For a number represented by n, the square of the number is n².
3 less than a number is found by subtracting 3 from the number. Equivalently, it is found by adding -3 to the number. The addition can be done in any order. For a number represented by n, 3 less than the number is either of ...
-3 +n
n -3
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The expression for "3 less than the square of a number" is ...
n² -3 . . . . . where n represents the number
It can also be written ...
-3 +n²
We generally prefer the first form, with variable exponents decreasing left-to-right.