Предмет: Алгебра, автор: MimiBabl

1). (1-4x) (1 + 4x + 16x^2) -6x^3 <10x-70x^3
2). 99x^3- (1 + 5x) (1-5x + 25x^2) >12x 26x^3

^2- квадрат
^3- куб
помогите пж

Ответы

Автор ответа: wejde
32
(1-4x)(1+4x+16x²)-6x³<10x-70x³
1-64x³-6x³-10x+70x³<0
-10x<-1
x>0,1
99x³-(1+5x)(1-5x+25x²)>12x-26x³
99x³-(1+125x³)-12x+26x³>0
99x³-1-125x³-12x+26x³>0
-12x>1
x<-1/12
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