24. If a-b= 12 and ab = 14, find a2 + ab + b2.

Answers (1)

(a-b)^2 = 12^2

a^2 + b^2 - 2ab = 144

a^2 + b^2 - 2 x 14 = 144

a^2 + b^2 - 28 = 144 

a^2 + b^2  = 144 + 28

a^2 + b^2  = 172

a^2 + b^2 +ab = 172 +ab

a^2 + b^2 +ab = 186

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 (Subscription)

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

₹ 6999/- ₹ 5/-
Buy Now
Knockout NEET May 2021

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

₹ 22999/- ₹ 14999/-
Buy Now
Knockout BITSAT 2020

It is an exhaustive preparation module made exclusively for cracking BITSAT..

₹ 4999/- ₹ 1999/-
Buy Now
Exams
Articles
Questions