(х+3) 2-(х-2) (х+2)+(х-4) (х+5)
2х+6-х^2-4+х^2+5х-4х+20=х+22
А
Вроде так
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(х+3) 2-(х-2) (х+2)+(х-4) (х+5)
2х+6-х^2-4+х^2+5х-4х+20=х+22
А
Вроде так