4x^2/4=400/4

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Solution for 4x^2/4=400/4 equation: 


x in (-oo:+oo)

(4*x^2)/4 = 400/4 // - 400/4

(4*x^2)/4-(400/4) = 0

(4*x^2)/4-100 = 0

1*x^2 = 100 // : 1

x^2 = 100

x^2 = 100 // ^ 1/2

abs(x) = 10

x = 10 or x = -10

x in { 10, -10 }

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