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CBSE Class 10 Answered

If 3 is one of the root of the quadratic equation kx^2 -7x + 12=0, then k = _______. (A)1 (B) -1 (C) 3 (D) -3
Asked by jayeshsah1995 | 13 Mar, 2024, 16:49: PM
answered-by-expert Expert Answer

x = 3 will satisfy kx2 - 7x + 12 = 0

hence,

9k - 21 + 12 = 0

k = 1

Answered by Arun | 13 Mar, 2024, 16:55: PM

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