(-5+b^3)^2 eching

$$( - 5 + b ^ { 3 } ) ^ { 2 }$$

Baholash

$$\left(b^{3}-5\right)^{2}$$

Yechim qadamlari

\left(p+q\right)^{2}=p^{2}+2pq+q^{2} binom teoremasini \left(-5+b^{3}\right)^{2} kengaytirilishi uchun ishlating.

$$25-10b^{3}+\left(b^{3}\right)^{2}$$

Daraja ko‘rsatkichini boshqa ko‘rsatkichga oshirish uchun, darajalarini ko‘paytiring. 3 va 2 ni ko‘paytirib, 6 ni oling.

$$25-10b^{3}+b^{6}$$

Kengaytirish

$$b^{6}-10b^{3}+25$$

Yechim qadamlari

\left(p+q\right)^{2}=p^{2}+2pq+q^{2} binom teoremasini \left(-5+b^{3}\right)^{2} kengaytirilishi uchun ishlating.

$$25-10b^{3}+\left(b^{3}\right)^{2}$$

Daraja ko‘rsatkichini boshqa ko‘rsatkichga oshirish uchun, darajalarini ko‘paytiring. 3 va 2 ni ko‘paytirib, 6 ni oling.

$$25-10b^{3}+b^{6}$$