Q. 3 D

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

(8x – 5) (8x – 2)

Answer :

Given (8x – 5) (8x – 2)


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


(8x – 5) (8x – 2) = (8x)2 + ( – 5 – 2)8x + ( – 5)×( – 2)


(8x – 5) (8x – 2) = 64x2 – 56x + 10


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