2/3(x+8)^2-66=0

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Solution for 2/3(x+8)^2-66=0 equation: 


x in (-oo:+oo)

(2/3)*(x+8)^2-66 = 0

2/3*(x+8)^2-66 = 0

2/3*(x+8)^2-66 = 0

2/3*x^2+32/3*x-70/3 = 0

2/3*x^2+32/3*x-70/3 = 0

2/3*(x^2+16*x-35) = 0

x^2+16*x-35 = 0

DELTA = 16^2-(-35*1*4)

DELTA = 396

DELTA > 0

x = (396^(1/2)-16)/(1*2) or x = (-396^(1/2)-16)/(1*2)

x = (6*11^(1/2)-16)/2 or x = (-6*11^(1/2)-16)/2

2/3*(x-((-6*11^(1/2)-16)/2))*(x-((6*11^(1/2)-16)/2)) = 0

2/3*(x-((-6*11^(1/2)-16)/2))*(x-((6*11^(1/2)-16)/2)) = 0

( x-((-6*11^(1/2)-16)/2) )

x-((-6*11^(1/2)-16)/2) = 0 // + (-6*11^(1/2)-16)/2

x = (-6*11^(1/2)-16)/2

( x-((6*11^(1/2)-16)/2) )

x-((6*11^(1/2)-16)/2) = 0 // + (6*11^(1/2)-16)/2

x = (6*11^(1/2)-16)/2

x in { (-6*11^(1/2)-16)/2, (6*11^(1/2)-16)/2 }

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