Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
College Test Prep
/
Praxis Core
/
Solve Quadratic Equations by Completing the Square
Grade Level
Praxis Core
5165.049 Solve Quadratic Equations by Completing the Square
0%
Skill Level
🟢 Easy
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
Complete the square to solve x
2
– (8/3)x + 4/3 = 0. Which response has the correct transformation and final solution set?
A
(x - 4/3)
2
= 4/9; keep only x = 2 because it comes from the principal root.
B
Add 64/9 instead of 16/9: (x - 8/3)
2
= 52/9; x = 8/3 ± 2*sqrt(13)/3.
C
(x - 4/3)
2
= 4/9; x - 4/3 = ±2/3; x = 2/3 or x = 2.
D
(x - 4/3)
2
= 28/9; x - 4/3 = ±2*sqrt(7)/3; x = 4/3 ± 2*sqrt(7)/3.
Submit Answer
