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\left(2-x\right)\left(1+162x\right)^{2}
162x ni olish uchun 18x va 144x ni birlashtirish.
\left(2-x\right)\left(1+324x+26244x^{2}\right)
\left(a+b\right)^{2}=a^{2}+2ab+b^{2} binom teoremasini \left(1+162x\right)^{2} kengaytirilishi uchun ishlating.
2+647x+52164x^{2}-26244x^{3}
2-x ga 1+324x+26244x^{2} ni ko‘paytirish orqali distributiv xususiyatdan foydalaning va ifoda sifatida birlashtiring.
\left(2-x\right)\left(1+162x\right)^{2}
162x ni olish uchun 18x va 144x ni birlashtirish.
\left(2-x\right)\left(1+324x+26244x^{2}\right)
\left(a+b\right)^{2}=a^{2}+2ab+b^{2} binom teoremasini \left(1+162x\right)^{2} kengaytirilishi uchun ishlating.
2+647x+52164x^{2}-26244x^{3}
2-x ga 1+324x+26244x^{2} ni ko‘paytirish orqali distributiv xususiyatdan foydalaning va ifoda sifatida birlashtiring.