Q2 Factorise  

(V)

(l+m) ^ 2 - ( l- m ) ^2

Answers (1)

We have, 
             (l+m) ^ 2 - ( l- m ) ^2  = [(l + m) - (l - m)][(l + m) + (l - m)]                                                                                                                 (using  a^{2} - b^{2} = (a-b)(a+b) )
                                                       = (l + m - l + m)(l + m + l - m)
                                                       = (2m)(2l) = 4ml

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Easy Installments)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
Buy Now
Exams
Articles
Questions