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Quadratic equations

find the value of b2-4ac for the quadratic equation x2-4x+9=0.

kesavarao entenika

Hi kesavarao entenika !
Mark as answer and close

x2-4x+9=0

Here a=1, b= -4 and c = 9

b2 - 4ac = (-4)2 - 4 *1 *9

             = 16 - 36

             = -23<0

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