wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Using suitable algebraic identities to find the value of
12.127.92.

A
94
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
99
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
80
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
84
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 84
12.127.92
Using the identity (a)2(b)2=(a+b)(ab),
= (12.1+7.9)(12.17.9)
=20.0×4.2=84
12.127.92=84.

flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Algebraic Identity: (a - b)(a + b) = a^2 - b^2
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon