Q. 3 E5.0( 1 Vote )

Using the identity (x + a)(x + b) = x2 + (a + b)x + ab, find out the following products:

(2m + 3n) (2m + 4n)

Answer :

Given (2m + 3n) (2m + 4n)


Using (x + a)(x + b) = x2 + (a + b)x + ab


(2m + 3n) (2m + 4n)= (2m)2 + (3n + 4n)(2m) + 3n×4n


(2m + 3n) (2m + 4n)= 4m2 + 14mn + 12n2


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Discussion on Algebric Identities48 mins
Champ Quiz | Linear Equation in One Variable44 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses