Solve the equationx2 -12x +27-0 by using formula. – InterviewSolution

1.

Solve the equationx2 -12x +27-0 by using formula.

Answer»

x² - 12x + 27 = 0

Use discrimanat formula

x = [12 +/- √[(-12)² - 4 × ( 27) ] ]/2

x = [ 12 +/- √36]/2

x = [ 12 +/- 6] /2

x = 18/2 and 6/2

x = 9 and 3

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