Rozłóż na czynniki :
x^3 - 6x^2+ 9x
27x^3-8
x^3 - 4x^2- 9x+ 36
x³ - 6x²+ 9x=x(x² - 6x+ 9)= ze wzoru skr =x(x-3)²
27x³-8= ze wzoru skr =(3 x-2)( 9x²+6x+4)
x³- 4x²- 9x+ 36=x²(x-4)-9(x-4)=(x-4)(x² - 9)=(x-4)(x-3)(x+3)
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x³ - 6x²+ 9x=x(x² - 6x+ 9)= ze wzoru skr =x(x-3)²
27x³-8= ze wzoru skr =(3 x-2)( 9x²+6x+4)
x³- 4x²- 9x+ 36=x²(x-4)-9(x-4)=(x-4)(x² - 9)=(x-4)(x-3)(x+3)