(5x/6)2=(7x/10)

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Solution for (5x/6)2=(7x/10) equation: 


x in (-oo:+oo)

((5*x)/6)^2 = (7*x)/10 // - (7*x)/10

((5*x)/6)^2-((7*x)/10) = 0

((5*x)/6)^2+(-7/10)*x = 0

25/36*x^2-7/10*x = 0

DELTA = (-7/10)^2-(0*25/36*4)

DELTA = 49/100

DELTA > 0

x = ((49/100)^(1/2)+7/10)/(25/36*2) or x = (7/10-(49/100)^(1/2))/(25/36*2)

x = 126/125 or x = 0

x in { 0, 126/125 }

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