The quadratic equation will have real roots if

MATHEMATICS · Single correct · CBSE · Mathematics · Quadratic Equations · Quadratic Equations

Problem

The quadratic equation 3x2+2px+7=03x^{2}+2px+7=0 will have real roots if (a) p2≤21p^{2}\le 21 (b) p2=21p^{2}=21 (c) p2≥21p^{2}\ge 21 (d) p≥21p\ge \sqrt{21}

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