Question

25 БАЛЛОВ
ХЕЕЕЛП
2 номер, буква в)

Answer 1

task/28351136
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d² -3d+2 = d² -2d*(3/2) +(3/2)² - (3/2)² + 2 =(d -3/2)² - (1/2)² =
(d -3/2 -1/2)(d -3/2+1/2) = (d -2)(d -1) . 
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d² -3d+2 = d² - (2+1)d+2 =d² - 2d - d+2 =d(d - 2) -(d -2) =(d-2)(d-1). 
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2d² -7d +3 =...