x2/4-9x/16=0

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Solution for x2/4-9x/16=0 equation: 


x in (-oo:+oo)

(x^2)/4-((9*x)/16) = 0

(x^2)/4+(-9/16)*x = 0

1/4*x^2-9/16*x = 0

DELTA = (-9/16)^2-(0*1/4*4)

DELTA = 81/256

DELTA > 0

x = ((81/256)^(1/2)+9/16)/(1/4*2) or x = (9/16-(81/256)^(1/2))/(1/4*2)

x = 9/4 or x = 0

x in { 0, 9/4 }

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