x*((60-x)/2)-450

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Solution for x*((60-x)/2)-450 equation: 


x in (-oo:+oo)

x*((60-x)/2)-450 = 0

(x*(60-x))/2-450 = 0

(x*(60-x))/2+(-450*2)/2 = 0

x*(60-x)-450*2 = 0

60*x-x^2-900 = 0

60*x-x^2-900 = 0

60*x-x^2-900 = 0

DELTA = 60^2-(-900*(-1)*4)

DELTA = 0

x = -60/(-1*2)

x = 30 or x = 30

(x-30)^2 = 0

((x-30)^2)/2 = 0

((x-30)^2)/2 = 0 // * 2

(x-30)^2 = 0

x-30 = 0 // + 30

x = 30

x in { 30, 30 }

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