Alerts Wishlist Cart

If a = 3 and b = 5, what is the value of a² + b² - 2ab?

Practice Questions

Q1
If a = 3 and b = 5, what is the value of a² + b² - 2ab?
  1. -1
  2. 1
  3. 0
  4. 2

Questions & Step-by-Step Solutions

If a = 3 and b = 5, what is the value of a² + b² - 2ab?
  • Step 1: Identify the values of a and b. Here, a = 3 and b = 5.
  • Step 2: Substitute the values of a and b into the expression a² + b² - 2ab.
  • Step 3: Calculate a². Since a = 3, a² = 3² = 9.
  • Step 4: Calculate b². Since b = 5, b² = 5² = 25.
  • Step 5: Calculate 2ab. Since a = 3 and b = 5, 2ab = 2(3)(5) = 30.
  • Step 6: Now substitute the calculated values into the expression: 9 + 25 - 30.
  • Step 7: Add 9 and 25 to get 34.
  • Step 8: Subtract 30 from 34 to get 4.
  • Algebraic Expressions – The question tests the ability to evaluate a quadratic expression using given values for variables.
  • Substitution – The question requires substituting specific values into an algebraic expression.
  • Understanding of Squares and Products – The question assesses knowledge of squaring numbers and calculating products.
Biology (School & UG)
Biology (School & UG)
Chemistry (School & UG)
Chemistry (School & UG)
Civil Engineering
Civil Engineering
Commerce & Accountancy
Commerce & Accountancy
Computer Science & IT
Computer Science & IT
Current Affairs & GK
Current Affairs & GK
Data Structures & Algorithms
Data Structures & Algorithms
eBooks
eBooks
Electrical & Electronics Engineering
Electrical & Electronics Engineering
English (School)
English (School)
General Aptitude
General Aptitude
General Knowledge
General Knowledge
General Knowledge & Current Affairs
General Knowledge & Current Affairs
Languages & Literature
Languages & Literature
Law & Legal Studies
Law & Legal Studies
Major Competitive Exams
Major Competitive Exams
Mathematics (School)
Mathematics (School)
Mechanical Engineering
Mechanical Engineering
Medical Science
Medical Science
Physics (School & Undergraduate)
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Quantitative Aptitude & Reasoning
Social Science (School)
Social Science (School)
Technical
Technical
Verbal and Reasoning
Verbal and Reasoning
Vocational & Skill Development
Vocational & Skill Development
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely