left(-z-2right)^2 eching

$${ \left(-z-2 \right) }^{ 2 }$$

Baholash

$$\left(z+2\right)^{2}$$

Yechim qadamlari

\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(-z-2\right)^{2} kengaytirilishi uchun ishlating.

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

2 daraja ko‘rsatkichini -z ga hisoblang va z^{2} ni qiymatni oling.

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

4 hosil qilish uchun -4 va -1 ni ko'paytirish.

$$z^{2}+4z+4$$

Kengaytirish

$$z^{2}+4z+4$$

Yechim qadamlari

\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(-z-2\right)^{2} kengaytirilishi uchun ishlating.

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

2 daraja ko‘rsatkichini -z ga hisoblang va z^{2} ni qiymatni oling.

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

4 hosil qilish uchun -4 va -1 ni ko'paytirish.

$$z^{2}+4z+4$$