Start learning →

For what value of x is x = 2 a zero of x² − 4?

AYes — p(2) = 0
BNo — p(2) ≠ 0
COnly if x positive
DCannot tell
Answer & Solution
Correct answer: A. Yes — p(2) = 0
p(2) = 4 − 4 = 0, so 2 is indeed a zero of x² − 4. (The other zero is −2.)
Practise this question with Quill — Andhra Pradesh SSC (Class 10) →

Keep practising Real Numbers and Polynomials

Browse all Real Numbers and Polynomials questions for Andhra Pradesh SSC (Class 10), or explore more Mathematics topics.

Start a Real Numbers and Polynomials lesson →
Related questions
CLASS10 · Mathematics · Polynomial Zeros & CoefficientsCLASS10 · Mathematics · HCF & LCM PairsAP nth term formula.Pythagorean theorem.Sort each number as Prime or Composite.Match each trig ratio to its definition in a right triangle.Pop only the irrational numbers.Continue the arithmetic progression.