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Ответ

Ответ дан
sunshine0204

а) x(x-4)=0

x=0   или   x-4=0

                  x=4

б) 6m⁴ - 54m² = 0

6m²(m²-9)=0

6m²=0    или m²-9=0

m=0                m²=9

                       m= ₊3  и -3

д) 100b² - 4b⁴ =0

4b²(25 - b²) = 0

4b²=0     или    25-b²=0

b=0                    25=b²

                          b = +-5

з) a³ - 2a² +a = 0

a(a² - 2a) = 0

a=0    или a²-2a=0

                 a(a-2)=0

                  a=0 или a-2=0

                                 a=2  

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