z^2-25*10^-12+16*10^-12 eching

$${ z }^{ 2 } -25 \times { 10 }^{ -12 } +16 \times { 10 }^{ -12 }$$

Baholash

$$z^{2}-\frac{9}{1000000000000}$$

Yechim qadamlari

-12 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{1000000000000} ni qiymatni oling.

$$z^{2}-25\times \frac{1}{1000000000000}+16\times 10^{-12}$$

\frac{1}{40000000000} hosil qilish uchun 25 va \frac{1}{1000000000000} ni ko'paytirish.

$$z^{2}-\frac{1}{40000000000}+16\times 10^{-12}$$

-12 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{1000000000000} ni qiymatni oling.

$$z^{2}-\frac{1}{40000000000}+16\times \frac{1}{1000000000000}$$

\frac{1}{62500000000} hosil qilish uchun 16 va \frac{1}{1000000000000} ni ko'paytirish.

$$z^{2}-\frac{1}{40000000000}+\frac{1}{62500000000}$$

-\frac{9}{1000000000000} olish uchun -\frac{1}{40000000000} va \frac{1}{62500000000}'ni qo'shing.

$$z^{2}-\frac{9}{1000000000000}$$

Omil

$$\frac{\left(1000000z-3\right)\left(1000000z+3\right)}{1000000000000}$$