0 reads0 ratings0 helpful
If (p(x)=x^2-4x-6), which is the correct pair of zeroes?
Advertisement
Answer and explanation
Correct answer: (2\pm\sqrt{10})
By the formula, (x=\frac{4\pm\sqrt{16+24}}{2}=2\pm\sqrt{10}). Remember (\sqrt{40}=2\sqrt{10}) while simplifying (D).
Frequently asked questions
What is the correct answer to this question?
(2\pm\sqrt{10})
Why is this the correct answer?
By the formula, (x=\frac{4\pm\sqrt{16+24}}{2}=2\pm\sqrt{10}). Remember (\sqrt{40}=2\sqrt{10}) while simplifying (D).
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