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x in (-oo:+oo)
(1/2)*p-((1/4)*q) = (1*3)/2 // - (1*3)/2
(1/2)*p-((1/4)*q)-((1*3)/2) = 0
(1/2)*p+(-1/4)*q-3/2 = 0
1/2*p-1/4*q-3/2 = 0
x należy do R
x in (-oo:+oo)
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