(-a-2b)^2 eching

$$( - a - 2 b ) ^ { 2 }$$

Baholash

$$\left(a+2b\right)^{2}$$

Yechim qadamlari

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

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

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

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

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

$$a^{2}+4ab+4b^{2}$$

Kengaytirish

$$a^{2}+4ab+4b^{2}$$

Yechim qadamlari

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

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

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

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

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

$$a^{2}+4ab+4b^{2}$$