### Home > CCA > Chapter 11 > Lesson 11.3.4 > Problem 11-119

11-119.

Solve the equations and inequalities below. Write your solutions in exact form. Homework Help ✎

− = (

*b*− 4)^{2}< 12− 9 ≤ 21 5

*n*^{2}− 11*n*+ 2 = 0

See problems 11-71 and 11-83 for additional help.

Multiply both sides by 12 as a Fraction Buster.

Solve the equation (*b* − 4)^{2} = 12 to find the boundary points.

Graph the values you found for *b* on a number line. Then test values from each region to determine which region(s) make(s) the inequality true.

See the help for part (b).

−33 ≤ *x* ≤ 27

This quadratic is factorable.

(5*n* ? 1)(*n* ? 2) = 0