x^3-64 eching

$$x^3-64$$

Omil

$$\left(x-4\right)\left(x^{2}+4x+16\right)$$

Yechim qadamlari

x^{3}-64 ni x^{3}-4^{3} sifatida qaytadan yozish. Kublarning farqini ushbu formula bilan hisoblash mumkin: a^{3}-b^{3}=\left(a-b\right)\left(a^{2}+ab+b^{2}\right). Koʻphadli x^{2}+4x+16 faktorlanmagan, chunki unda ratsional ildizlar topilmadi.

$$\left(x-4\right)\left(x^{2}+4x+16\right)$$

Baholash

$$x^{3}-64$$