Start learning →

How many real zeroes does p(x) = x² + 4 have?

A1
B2
C4
D0
Answer & Solution
Correct answer: D. 0
x² + 4 > 0 for every real x. The parabola never crosses the x-axis. D = 0 − 16 = −16 < 0, confirming no real zeroes.
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.