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x in (-oo:+oo)
(x+4)^2 = 9/64 // - 9/64
(x+4)^2-(9/64) = 0
(x+4)^2-9/64 = 0
(64*(x+4)^2)/64-9/64 = 0
64*(x+4)^2-9 = 0
64*x^2+512*x+1015 = 0
64*x^2+512*x+1015 = 0
64*x^2+512*x+1015 = 0
DELTA = 512^2-(4*64*1015)
DELTA = 2304
DELTA > 0
x = (2304^(1/2)-512)/(2*64) or x = (-2304^(1/2)-512)/(2*64)
x = -29/8 or x = -35/8
(x+35/8)*(x+29/8) = 0
((x+35/8)*(x+29/8))/64 = 0
((x+35/8)*(x+29/8))/64 = 0 // * 64
(x+35/8)*(x+29/8) = 0
( x+29/8 )
x+29/8 = 0 // - 29/8
x = -29/8
( x+35/8 )
x+35/8 = 0 // - 35/8
x = -35/8
x in { -29/8, -35/8 }
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