For which set of integer values of does the quadratic equation have no real roots?

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

Problem

For which set of integer values of mm does the quadratic equation 2x2+(m+1)x+3m=02x^{2}+(m+1)x+3m=0 have no real roots? (a) 1≤m≤91\le m\le 9 (b) 0≤m≤220\le m\le 22 (c) 1≤m≤211\le m\le 21 (d) m≥22m\ge 22

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