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

Using a suitable algebraic identity, find 41×43.
  1. 1763

Open in App
Solution

The correct option is A 1763
We know that,
41×43 can be written as (40+1)×(40+3)
So, using the algebraic identity, (x+a)×(x+b)=x2+(a+b)x+ab

Here, x=40,a=1,b=3
(40+1)×(40+3)=402+(1+3)×40+1×3
=1600+160+3
=1763

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Factorization of ax^2+bx+c
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon