Q1 of 227 Page 110

Determine the nature of the roots of the equation.

x2 – 8x + 12 = 0

x2 – 8x + 12 = 0



⇒ a = 1 , b = –8 and c = 12


= (–8)2– 4(1)(12)


64 – 48


= 16


∴ b2 – 4ac > 0. hence, roots are real.


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