0 reads0 ratings0 helpful
If (p(x)=x^2-2x-4), what is the sum of squares of its zeroes?
Advertisement
Answer and explanation
Correct answer: (12)
(\alpha+\beta=2) and (\alpha\beta=-4), so (\alpha^2+\beta^2=2^2-2(-4)=12). Symmetric values can be found without finding the zeroes.
Frequently asked questions
What is the correct answer to this question?
(12)
Why is this the correct answer?
(\alpha+\beta=2) and (\alpha\beta=-4), so (\alpha^2+\beta^2=2^2-2(-4)=12). Symmetric values can be found without finding the zeroes.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Irrational numbers and real numbers.
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