2/x+4-2/x eching

$$\frac { 2 } { x + 4 } - \frac { 2 } { x }$$

Baholash

$$-\frac{8}{x\left(x+4\right)}$$

Qisqa yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. x+4 va x ning eng kichik umumiy karralisi x\left(x+4\right). \frac{2}{x+4} ni \frac{x}{x} marotabaga ko'paytirish. \frac{2}{x} ni \frac{x+4}{x+4} marotabaga ko'paytirish.

$$\frac{2x}{x\left(x+4\right)}-\frac{2\left(x+4\right)}{x\left(x+4\right)}$$

\frac{2x}{x\left(x+4\right)} va \frac{2\left(x+4\right)}{x\left(x+4\right)} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{2x-2\left(x+4\right)}{x\left(x+4\right)}$$

2x-2\left(x+4\right) ichidagi ko‘paytirishlarni bajaring.

$$\frac{2x-2x-8}{x\left(x+4\right)}$$

2x-2x-8 kabi iboralarga o‘xshab birlashtiring.

$$\frac{-8}{x\left(x+4\right)}$$

x\left(x+4\right) ni kengaytirish.

$$\frac{-8}{x^{2}+4x}$$

Omil

$$-\frac{8}{x\left(x+4\right)}$$