1-1-2y^2/1-y+y eching

$$1 - \frac { 1 - 2 y ^ { 2 } } { 1 - y } + y$$

Baholash

$$\frac{y^{2}}{1-y}$$

Qisqa yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. 1+y ni \frac{1-y}{1-y} marotabaga ko'paytirish.

$$\frac{\left(1+y\right)\left(1-y\right)}{1-y}-\frac{1-2y^{2}}{1-y}$$

\frac{\left(1+y\right)\left(1-y\right)}{1-y} va \frac{1-2y^{2}}{1-y} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\left(1+y\right)\left(1-y\right)-\left(1-2y^{2}\right)}{1-y}$$

\left(1+y\right)\left(1-y\right)-\left(1-2y^{2}\right) ichidagi ko‘paytirishlarni bajaring.

$$\frac{1-y+y-y^{2}-1+2y^{2}}{1-y}$$

1-y+y-y^{2}-1+2y^{2} kabi iboralarga o‘xshab birlashtiring.

$$\frac{y^{2}}{1-y}$$

Kengaytirish

$$\frac{y^{2}}{1-y}$$

Qisqa yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. 1+y ni \frac{1-y}{1-y} marotabaga ko'paytirish.

$$\frac{\left(1+y\right)\left(1-y\right)}{1-y}-\frac{1-2y^{2}}{1-y}$$

\frac{\left(1+y\right)\left(1-y\right)}{1-y} va \frac{1-2y^{2}}{1-y} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\left(1+y\right)\left(1-y\right)-\left(1-2y^{2}\right)}{1-y}$$

\left(1+y\right)\left(1-y\right)-\left(1-2y^{2}\right) ichidagi ko‘paytirishlarni bajaring.

$$\frac{1-y+y-y^{2}-1+2y^{2}}{1-y}$$

1-y+y-y^{2}-1+2y^{2} kabi iboralarga o‘xshab birlashtiring.

$$\frac{y^{2}}{1-y}$$