2/x+5/x+1= eching

$$\frac { 2 } { x } + \frac { 5 } { x + 1 } =$$

Baholash

$$\frac{7x+2}{x\left(x+1\right)}$$

Qisqa yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. x va x+1 ning eng kichik umumiy karralisi x\left(x+1\right). \frac{2}{x} ni \frac{x+1}{x+1} marotabaga ko'paytirish. \frac{5}{x+1} ni \frac{x}{x} marotabaga ko'paytirish.

$$\frac{2\left(x+1\right)}{x\left(x+1\right)}+\frac{5x}{x\left(x+1\right)}$$

\frac{2\left(x+1\right)}{x\left(x+1\right)} va \frac{5x}{x\left(x+1\right)} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{2\left(x+1\right)+5x}{x\left(x+1\right)}$$

2\left(x+1\right)+5x ichidagi ko‘paytirishlarni bajaring.

$$\frac{2x+2+5x}{x\left(x+1\right)}$$

2x+2+5x kabi iboralarga o‘xshab birlashtiring.

$$\frac{7x+2}{x\left(x+1\right)}$$

x\left(x+1\right) ni kengaytirish.

$$\frac{7x+2}{x^{2}+x}$$

x ga nisbatan hosilani topish

$$-\frac{7x^{2}+4x+2}{\left(x\left(x+1\right)\right)^{2}}$$

Koeffitsient uchun derivativ qoidasidan foydalanish qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. x va x+1 ning eng kichik umumiy karralisi x\left(x+1\right). \frac{2}{x} ni \frac{x+1}{x+1} marotabaga ko'paytirish. \frac{5}{x+1} ni \frac{x}{x} marotabaga ko'paytirish.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{2\left(x+1\right)}{x\left(x+1\right)}+\frac{5x}{x\left(x+1\right)})$$

\frac{2\left(x+1\right)}{x\left(x+1\right)} va \frac{5x}{x\left(x+1\right)} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{2\left(x+1\right)+5x}{x\left(x+1\right)})$$

2\left(x+1\right)+5x ichidagi ko‘paytirishlarni bajaring.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{2x+2+5x}{x\left(x+1\right)})$$

2x+2+5x kabi iboralarga o‘xshab birlashtiring.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{7x+2}{x\left(x+1\right)})$$

x ga x+1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{7x+2}{x^{2}+x})$$

Har qanday ikki differensial funksiya uchun ikki funksiyaning koeffitsient hosilasi raqamlagichning hosila marotabasi maxraj minusi va barchasi kvadrat maxrajiga bo'lingan.

$$\frac{\left(x^{2}+x^{1}\right)\frac{\mathrm{d}}{\mathrm{d}x}(7x^{1}+2)-\left(7x^{1}+2\right)\frac{\mathrm{d}}{\mathrm{d}x}(x^{2}+x^{1})}{\left(x^{2}+x^{1}\right)^{2}}$$

Polinomialning hosilasi bu uning shartlari hosilasining yig‘indisiga teng. Konstant shartning hosilasi 0. ax^{n} ning hosilasi nax^{n-1}.

$$\frac{\left(x^{2}+x^{1}\right)\times 7x^{1-1}-\left(7x^{1}+2\right)\left(2x^{2-1}+x^{1-1}\right)}{\left(x^{2}+x^{1}\right)^{2}}$$

Qisqartirish.

$$\frac{\left(x^{2}+x^{1}\right)\times 7x^{0}-\left(7x^{1}+2\right)\left(2x^{1}+x^{0}\right)}{\left(x^{2}+x^{1}\right)^{2}}$$

x^{2}+x^{1} ni 7x^{0} marotabaga ko'paytirish.

$$\frac{x^{2}\times 7x^{0}+x^{1}\times 7x^{0}-\left(7x^{1}+2\right)\left(2x^{1}+x^{0}\right)}{\left(x^{2}+x^{1}\right)^{2}}$$

7x^{1}+2 ni 2x^{1}+x^{0} marotabaga ko'paytirish.

$$\frac{x^{2}\times 7x^{0}+x^{1}\times 7x^{0}-\left(7x^{1}\times 2x^{1}+7x^{1}x^{0}+2\times 2x^{1}+2x^{0}\right)}{\left(x^{2}+x^{1}\right)^{2}}$$

Ayni daraja ko'rsatkichlarini ko'paytirish uchun ularning darajalarini qo'shing.

$$\frac{7x^{2}+7x^{1}-\left(7\times 2x^{1+1}+7x^{1}+2\times 2x^{1}+2x^{0}\right)}{\left(x^{2}+x^{1}\right)^{2}}$$

Qisqartirish.

$$\frac{7x^{2}+7x^{1}-\left(14x^{2}+7x^{1}+4x^{1}+2x^{0}\right)}{\left(x^{2}+x^{1}\right)^{2}}$$

O'xshash hadlarni birlashtirish.

$$\frac{-7x^{2}-4x^{1}-2x^{0}}{\left(x^{2}+x^{1}\right)^{2}}$$

Har qanday t sharti uchun t^{1}=t.

$$\frac{-7x^{2}-4x-2x^{0}}{\left(x^{2}+x\right)^{2}}$$

Har qanday t sharti uchun (0 bundan mustasno) t^{0}=1.

$$\frac{-7x^{2}-4x-2}{\left(x^{2}+x\right)^{2}}$$