4x^2-7^2/100

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Solution for 4x^2-7^2/100 equation: 


x in (-oo:+oo)

4*x^2-((7^2)/100) = 0

4*x^2 = 49/100 // : 4

x^2 = 49/400

x^2 = 49/400 // ^ 1/2

abs(x) = 7/20

x = 7/20 or x = -7/20

x in { 7/20, -7/20 }

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