Q. 35.0( 2 Votes )
Find the roots of each of the following equations, if they exist, by applying the quadratic formula:
x2 – 6x + 4 = 0
Answer :
Given: x2 – 6x + 4 = 0
Comparing with standard quadratic equation ax2 + bx + c = 0
a = 1, b = – 6, c = 4
Discriminant D = b2 – 4ac
= (6)2 – 4.1.4
= 36 – 16 = 20 > 0
Hence the roots of equation are real.
Roots 
are given by
Hence the roots of equation are 
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