Ответ:
Объяснение:
в) =c²-(a²-2ab+b²)= c²-(a-b)²= (c-(a-b))(c+(a-b))= (c-a+b)(c+a-b)
г) =a(9a²+6a+1)= a(3a+1)²= a(3a+1)(3a+1)
2) 49x³+14x²+x=0
x(49x²+14x+1)=0
x(7x+1)²=0
x1= 0
x2= -1/7
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Ответ:
Объяснение:
в) =c²-(a²-2ab+b²)= c²-(a-b)²= (c-(a-b))(c+(a-b))= (c-a+b)(c+a-b)
г) =a(9a²+6a+1)= a(3a+1)²= a(3a+1)(3a+1)
2) 49x³+14x²+x=0
x(49x²+14x+1)=0
x(7x+1)²=0
x1= 0
x2= -1/7