(30)(1.8)=(30.5)(1.8)(0.8)-(30.5)(1.2-x)(0.6-0.5x)-(0.5)(30.5x)((x/3)-1.2-x)

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Solution for (30)(1.8)=(30.5)(1.8)(0.8)-(30.5)(1.2-x)(0.6-0.5x)-(0.5)(30.5x)((x/3)-1.2-x) equation: 


x in (-oo:+oo)

1.8*30 = 0.8*1.8*30.5-(30.5*(1.2-x)*(0.6-(0.5*x)))-(0.5*30.5*x*(x/3-x-1.2)) // - 0.8*1.8*30.5-(30.5*(1.2-x)*(0.6-(0.5*x)))-(0.5*30.5*x*(x/3-x-1.2))

30.5*(1.2-x)*(0.6-(0.5*x))+0.5*30.5*x*(x/3-x-1.2)+1.8*30-(0.8*1.8*30.5) = 0

30.5*(1.2-x)*(0.6-0.5*x)+0.5*30.5*x*(x/3-x-1.2)+1.8*30-43.92 = 0

30.5*(1.2-x)*(0.6-0.5*x)+15.25*x*(-2/3*x-1.2)-43.92+54 = 0

30.5*(1.2-x)*(0.6-0.5*x)+15.25*x*(-2/3*x-1.2)-43.92+54 = 0

5.0833332825*x^2-54.9*x-43.92+21.96+54 = 0

5.0833332825*x^2-54.9*x-43.92+75.96 = 0

5.0833332825*x^2-54.9*x+32.04 = 0

5.0833332825*x^2-54.9*x+32.04 = 0

5.0833332825*x^2-54.9*x+32.04 = 0

DELTA = (-54.9)^2-(4*5.0833332825*32.04)

DELTA = 54.9^2-651.4799934852

DELTA = 2362.5300065148

DELTA > 0

x = ((54.9^2-651.4799934852)^(1/2)+54.9)/(2*5.0833332825) or x = (54.9-(54.9^2-651.4799934852)^(1/2))/(2*5.0833332825)

x = 0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9) or x = 0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2))

(x-0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2)))*(x-0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9)) = 0

(x-0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2)))*(x-0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9)) = 0

( x-0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9) )

x-0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9) = 0 // + -0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9)

x = -(-0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9))

x = 0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9)

( x-0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2)) )

x-0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2)) = 0 // + -0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2))

x = -(-0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2)))

x = 0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2))

x in { 0.09836066*((54.9^2-651.4799934852)^(1/2)+54.9), 0.09836066*(54.9-(54.9^2-651.4799934852)^(1/2)) }

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