Algebraic IdentitiesPractice Questions & MCQs
Practice Algebraic Identities questions from Polynomials (Class 9 Maths) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Algebraic IdentitiesQuiz - Solve & Score
Q1. 17^2 - 13^2 = ?
- A.120
- B.30
- C.4
- D.121
Answer: A. 120
We are told that 17, 2, 13, 2 (math, chapter 'Polynomials'). Our target: the unknown asked. The relevant chapter relation links the data to the unknown - rearrange it to isolate the quantity we are solving for. Substituting and simplifying: (17-13)(17+13) = 4×.30 = 120. That lands on option A) 120. As for the others, option B) '30' misses the point - Compute; option C) '4' misses the point - Multiply both.
Q2. 21^2 - 19^2 = ?
- A.80
- B.40
- C.2
- D.81
Answer: A. 80
Q3. Two numbers add up to 7 and their product is 10. Using the square-of-a-sum identity, find the value of the sum of their squares.
- A.29
- B.49
- C.69
- D.39
Answer: A. 29
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Get early accessAlgebraic Identities - Frequently asked questions
Where can I practise Algebraic Identities questions for Class 9 Maths?
RankByte has Algebraic Identities practice questions and MCQs from Polynomials (Class 9 Maths), each with the correct answer and a step-by-step solution - free to start.
Are these Algebraic Identities questions important for the exam?
Yes. These Algebraic Identities important questions follow the Maths exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
Do the Algebraic Identities questions come with answers and solutions?
Every Algebraic Identities question on RankByte comes with the correct answer and a full step-by-step solution, so you learn the concept instead of just guessing.