2n+1:n-3 eching

$$2 n + 1 : n - 3$$

Baholash

$$2n-3+\frac{1}{n}$$

Qisqa yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. 2n-3 ni \frac{n}{n} marotabaga ko'paytirish.

$$\frac{\left(2n-3\right)n}{n}+\frac{1}{n}$$

\frac{\left(2n-3\right)n}{n} va \frac{1}{n} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{\left(2n-3\right)n+1}{n}$$

\left(2n-3\right)n+1 ichidagi ko‘paytirishlarni bajaring.

$$\frac{2n^{2}-3n+1}{n}$$

Omil

$$\frac{\left(n-1\right)\left(2n-1\right)}{n}$$