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m1x3r
@m1x3r
June 2021
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выделение квадрата двучлена из квадратного трёхчлена. напишите примеры)
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alyonamanakina
А)х^2+8х-2=(х^2 -2*х*4+4^2)-4^2-2=(х-4)^2-18
б) 0,5х^2+3х+7=0,5(х^2+6х+14)=0,5((х^2+2*х*3+3^2)-3^2+14=0,5((х+3)^2+5)=0,5(х+3)^2+2,5
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Answers & Comments
б) 0,5х^2+3х+7=0,5(х^2+6х+14)=0,5((х^2+2*х*3+3^2)-3^2+14=0,5((х+3)^2+5)=0,5(х+3)^2+2,5