### Home > INT2 > Chapter 8 > Lesson 8.3.1 > Problem 8-63

8-63.

For each expression below, what real-number value of

*x*will yield the lowest possible value of the expression? For example, in part (a), if*x*= 5, then the value of the expression is 25. If*x*= –4, then the value of the expression is 16. Are there values of*x*that will result in smaller values of the expression? Homework Help ✎a.

*x*^{2}b. (

*x*– 1)^{2}c. (

*x*+ 7)^{2}

Each of these expressions is squared. When you square a quantity, what is the lowest result you can get?

The lowest value will occur when *x* = 0.

*x* = −7