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InterviewSolution
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How many real zeros in the polynomial x3 - x2 + 2?1. 32. 03. 14. 2 |
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Answer» Correct Answer - Option 3 : 1 Given: ⇒ p(x) = x3 - x2 + 2 Calculation:A rational zero theorem tells that if p/q is a zero then p = factor of leading term and q = factor of constant. ⇒ p/q for p(x) = +_1 and +_1/2 So, dividing p(x) with (x + 1) gives p(x) = 0, then (-1) is the only real zero function of given polynomial. ∴ For given polynomial, there is only one real zero. - A root or a zero of a polynomial are the value(s) of X that cause the polynomial to = 0. |
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