3 is subtracted from a number.
The sentence "5 is subtracted from the square of a number" represented as an algebraic expression is:
- Let the number be x.
In this exercise, you're required to write an algebraic expression to represent the word problem (sentence). Also, the number would be denoted by the letter x and no need for further simplification of the algebraic expression.
Translating the word problem (sentence) into an algebraic expression, we have;
Square of a number
Subtracting 5 from the the square of x, we have;