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ICSE Class 10 Answered

If the equation 𝑘𝑥 2 − 2𝑘𝑥 + 6 = 0 has equal roots, then find the value of k.
Asked by intacthacker | 12 Oct, 2020, 11:21: AM
answered-by-expert Expert Answer
 
Given Quadratic equation :- k x2 - 2 k x + 6 = 0
 
if a quadratic equation , a x2 + bx + c = 0 has equal roots , then we have  b2 - (4 a c ) = 0
 
Hence to get equal roots of given quadratic equation, we have , 4 k2 - ( 4 k × 6 ) = 0  or  k = 6
Answered by Thiyagarajan K | 14 Oct, 2020, 10:00: PM

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