CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

Find the roots of the equation x24x9=0 by the method of completing the square.

A
x=4±5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
x=2±3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
x=2±6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
x=2±13
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D x=2±13
Given: x24x9=0
This is same as:
x2[2×(x)×2]+22229=0
(x2)249=0
(x2)213=0
(x2)2=13
x2=±13
x=2±13

flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Solving QE by Completing the Square
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon