find the value of value of k for which the equation X square + (2 X + K - 1) is equal to zero has real and equal roots
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find the value of value of k for which the equation X square + (2 X + K - 1) is equal to zero has real and equal roots
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Answer:
±4
Step-by-step explanation:
using sridharacharya formula
-b^2±√b^2-4AC/[email protected] =0
we get
4±√4-4K-4/2a=0
after calculation we get
±(-4K)=16
hence comes the value of k
±4