49=1/16x^2

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Solution for 49=1/16x^2 equation: 


x in (-oo:+oo)

49 = (1/16)*x^2 // - (1/16)*x^2

49-((1/16)*x^2) = 0

(-1/16)*x^2+49 = 0

-1/16*x^2 = -49 // : -1/16

x^2 = 784

x^2 = 784 // ^ 1/2

abs(x) = 28

x = 28 or x = -28

x in { 28, -28 }

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