# CBSE Class 10 Answered

**if X square + 2K x kx + 4 4 is equal to zero has a root x is equal to 2 find the value of k**

Asked by hazelvermah | 19 Apr, 2021, 09:02: AM

Expert Answer

As the equation x

^{2}+ 2kx + 4 = 0 has root x = 2, so 2 satisfies the given equation.Therefore, 2

^{2}+ 2k(2) + 4 = 04 + 4k + 4 = 0

Therefore, k = -2

Answered by Renu Varma | 21 Apr, 2021, 12:43: PM

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