(M-7/2)^2-1=0

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Solution for (M-7/2)^2-1=0 equation: 


M in (-oo:+oo)

(M-(7/2))^2-1 = 0

(M-7/2)^2-1 = 0

(M-7/2)^2-1 = 0

M^2-7*M+45/4 = 0

M^2-7*M+45/4 = 0

M^2-7*M+45/4 = 0

DELTA = (-7)^2-(1*4*45/4)

DELTA = 4

DELTA > 0

M = (4^(1/2)+7)/(1*2) or M = (7-4^(1/2))/(1*2)

M = 9/2 or M = 5/2

(M-5/2)*(M-9/2) = 0

(M-5/2)*(M-9/2) = 0

( M-5/2 )

M-5/2 = 0 // + 5/2

M = 5/2

( M-9/2 )

M-9/2 = 0 // + 9/2

M = 9/2

M in { 5/2, 9/2 }

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