0 reads0 ratings0 helpful
If (p(x)=x^2+2\sqrt{5}x+5), what is its real zero?
Advertisement
Answer and explanation
Correct answer: (-\sqrt{5}) twice
(p(x)=(x+\sqrt{5})^2), so the zero is (-\sqrt{5}) twice. A perfect-square form gives a repeated zero.
Frequently asked questions
What is the correct answer to this question?
(-\sqrt{5}) twice
Why is this the correct answer?
(p(x)=(x+\sqrt{5})^2), so the zero is (-\sqrt{5}) twice. A perfect-square form gives a repeated zero.
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