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p in (-oo:+oo)
(5/8)*(p+3) = -5/2-(1/4)-1 // + -5/2-(1/4)-1
(5/8)*(p+3)-(-5/2)+1/4+1 = 0
(5/8)*(p+3)+5/2+1/4+1 = 0
5/8*(p+3)+5/2+1/4+1 = 0
(5/8*2*4*(p+3))/(2*4)+(4*5)/(2*4)+(1*2)/(2*4)+(1*2*4)/(2*4) = 0
5/8*2*4*(p+3)+4*5+1*2+1*2*4 = 0
5*p+2+8+35 = 0
5*p+8+37 = 0
5*p+45 = 0
(5*p+45)/(2*4) = 0
(5*p+45)/(2*4) = 0 // * 2*4
5*p+45 = 0
5*p+45 = 0 // - 45
5*p = -45 // : 5
p = -45/5
p = -9
p = -9
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