16=(90/360)*x*x

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Solution for 16=(90/360)*x*x equation: 


x in (-oo:+oo)

16 = (90/360)*x*x // - (90/360)*x*x

16-((90/360)*x*x) = 0

(-1/4)*x^2+16 = 0

-1/4*x^2 = -16 // : -1/4

x^2 = 64

x^2 = 64 // ^ 1/2

abs(x) = 8

x = 8 or x = -8

x in { 8, -8 }

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