![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Expand: $x^2-(2y-3)^2$.
Given:
$x^2-(2y-3)^2$.
To do:
We have to expand $x^2-(2y-3)^2$.
Solution:
We know that,
$(a-b)^2=a^2-2ab+b^2$
Therefore,
$x^2-(2y-3)^2=x^2-[(2y)^2-2(2y)(3)+3^2]$ $=x^2-[4y^2-12y+9] $
$=x^2-4y^2+12y-9$
The expanded form of $x^2-(2y-3)^2$ is $x^2-4y^2+12y-9$.
Advertisements