0 reads0 ratings0 helpful
What is obtained by simplifying ( (5a-4b)^2+(5a+4b)^2 )?
Advertisement
Answer and explanation
Correct answer: (50a^2+32b^2)
The sum identity gives (2(5a)^2+2(4b)^2=50a^2+32b^2). Exam tip: notice the cancellation of middle terms.
Frequently asked questions
What is the correct answer to this question?
(50a^2+32b^2)
Why is this the correct answer?
The sum identity gives (2(5a)^2+2(4b)^2=50a^2+32b^2). Exam tip: notice the cancellation of middle terms.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Algebraic identities.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement