p2/7=12

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Solution for p2/7=12 equation: 


p in (-oo:+oo)

(p^2)/7 = 12 // - 12

(p^2)/7-12 = 0

1/7*p^2 = 12 // : 1/7

p^2 = 84

p^2 = 84 // ^ 1/2

abs(p) = 2*21^(1/2)

p = 2*21^(1/2) or p = -(2*21^(1/2))

p in { 2*21^(1/2), -(2*21^(1/2)) }

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