(15x-21x^{12}+x^{9}+3x^2)+(x^7-68x^2-x^9) eching

$$( 15 x - 21 x ^ { 12 } + x ^ { 9 } + 3 x ^ { 2 } ) + ( x ^ { 7 } - 68 x ^ { 2 } - x ^ { 9 } )$$

Baholash

$$x\left(15-65x+x^{6}-21x^{11}\right)$$

Yechim qadamlari

-65x^{2} ni olish uchun 3x^{2} va -68x^{2} ni birlashtirish.

$$15x-21x^{12}+x^{9}-65x^{2}+x^{7}-x^{9}$$

0 ni olish uchun x^{9} va -x^{9} ni birlashtirish.

$$15x-21x^{12}-65x^{2}+x^{7}$$

Omil

$$x\left(15-65x+x^{6}-21x^{11}\right)$$

Yechim qadamlari

x omili. Koʻphadli -21x^{11}+x^{6}-65x+15 faktorlanmagan, chunki unda ratsional ildizlar topilmadi.

$$x\left(15-21x^{11}+x^{8}+3x+x^{6}-68x-x^{8}\right)$$