80=1/2a2^2

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Solution for 80=1/2a2^2 equation: 


a in (-oo:+oo)

80 = (1/2)*a^(2^2) // - (1/2)*a^(2^2)

80-((1/2)*a^(2^2)) = 0

(-1/2)*a^(2^2)+80 = 0

-1/2*a^4 = -80 // : -1/2

a^4 = 160

a^4 = 160 // ^ 1/4

abs(a) = 2*10^(1/4)

a = 2*10^(1/4) or a = -(2*10^(1/4))

a in { 2*10^(1/4), -(2*10^(1/4)) }

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