### Home > CAAC > Chapter 2 > Lesson 2.1.9 > Problem 2-90

2-90.

Evaluate the expressions below for the given values. Homework Help ✎

6

*m*+ 2*n*^{2}for*m*= 7 and*n*= 3for

*x*= −18for

*x*= 10(

*k*− 3)(*k*+ 2) for*k*= 1

Substitute the given values for the variables *m* and *n*.

6(7) + 2(3^{2})

Simplify the expression.

42 + 18 = 60

60

Substitute −18 for *x* in the expression. Then simplify.

After substituting 10 for *x*, the expression becomes:

Simplify. Be sure to multiply the 6 and 10 before squaring!

Replace each *k* with 1, and then simplify the expression.

−6