find the value of k for which the equation x^2+k(2x+k-1)+2=0 gas real and distinct roots
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Step-by-step explanation:
If the quadratic equation has real root ,it means that the discriminant equals 0 or if you plot it graphically it will touch the x axis at one point.
D=0
b^2 -4ac =0
K^2 - 4(k-1)=0
K^2 -4k +4=0
(K-2)^2 =0
K=2
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