Q64 of 134 Page 4


Determine whether the given quadratic equation has root(s). If so, findthe root(s): z 2– 6z + 4 = 0.


a = 1,

b = –6 and

c = 4
Δ = b 2 – 4ac

= (–6) 2 – 4(1)(4)

= 36 – 16

= 20
Therefore the quadratic equation has real roots.


Therefore the roots are and

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