Alerts
Wishlist
Cart
Sign In
Categories
Current Affairs & GK
Current Affairs
Show All Current Affairs & GK
eBooks
General Aptitude
Arithmetic Aptitude
Data Interpretation
Show All General Aptitude
General Knowledge
Basic General Knowledge
General Science
Show All General Knowledge
Medical Science
Anatomy
Biochemical Engineering
Biochemistry
Biotechnology
Microbiology
Show All Medical Science
Technical
Database
Digital Electronics
Electronics
Networking
Show All Technical
Verbal and Reasoning
Logical Reasoning
Verbal Ability
Verbal Reasoning
Show All Verbal and Reasoning
What is the value of (x + 2)(x - 2)?
Practice Questions
Q1
What is the value of (x + 2)(x - 2)?
x² + 4
x² - 4
2x
x² - 2
Questions & Step-by-Step Solutions
What is the value of (x + 2)(x - 2)?
Steps
Concepts
Step 1: Identify the expression you need to simplify, which is (x + 2)(x - 2).
Step 2: Recognize that this expression is in the form of (a + b)(a - b), where a = x and b = 2.
Step 3: Use the difference of squares identity, which states that (a + b)(a - b) = a² - b².
Step 4: Substitute a and b into the identity: a = x and b = 2.
Step 5: Calculate a², which is x², and b², which is 2² = 4.
Step 6: Apply the identity: (x + 2)(x - 2) = x² - 4.
No concepts available.
‹
Biology (School & UG)
Chemistry (School & UG)
Civil Engineering
Commerce & Accountancy
Computer Science & IT
Current Affairs & GK
Data Structures & Algorithms
eBooks
Electrical & Electronics Engineering
English (School)
General Aptitude
General Knowledge
General Knowledge & Current Affairs
Languages & Literature
Law & Legal Studies
Major Competitive Exams
Mathematics (School)
Mechanical Engineering
Medical Science
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Social Science (School)
Technical
Verbal and Reasoning
Vocational & Skill Development
›
Soulshift Feedback
×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy
?
0
1
2
3
4
5
6
7
8
9
10
Not likely
Very likely
✕
↑
