- x² - x + 2 = - (x² + x - 2) = - (x - 1)(x + 2) = (1 - x)(x + 2)
Ответ:
Объяснение:
-x²- х + 2 = -(x+2)(x-1)
D=1+8=9
√9=3
x=(1±3)/-2= -2 ; 1
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Verified answer
- x² - x + 2 = - (x² + x - 2) = - (x - 1)(x + 2) = (1 - x)(x + 2)
Ответ:
Объяснение:
-x²- х + 2 = -(x+2)(x-1)
D=1+8=9
√9=3
x=(1±3)/-2= -2 ; 1