1.

discuss the nature of a solution of quadratic equation X2 - 4x+4=0

Answer»

x2 −4x+4=0
Comparing the given equation with the quadratic equation ax2+bx+c=0
a=1,b=−4 and c=4  
Discriminant, 
Δ=b2 −4ac=(−4)2−4×1×4=16−16=0
Since the discriminant =0
 so, the roots of the given quadratic equation are real and equal.



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