x^2-7x eching

$$x ^ { 2 } - 7 x$$

Omil

$$x\left(x-7\right)$$

Yechim qadamlari

x omili.

$$x\left(x-7\right)$$

Kvadrat tenglamalaridan foydalanish qoidalari

Kvadrat koʻp tenglama bu orqali hisoblanadi: ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right), bu yerda x_{1} va x_{2} ax^{2}+bx+c=0 kvadrat tenglamaning yechimlari.

$$x^{2}-7x=0$$

ax^{2}+bx+c=0 shaklidagi barcha tenglamalarni kvadrat formulasi bilan yechish mumkin: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. Kvadrat formula ikki yechmni taqdim qiladi, biri ± qo'shish bo'lganda, va ikkinchisi ayiruv bo'lganda.

$$x=\frac{-\left(-7\right)±\sqrt{\left(-7\right)^{2}}}{2}$$

\left(-7\right)^{2} ning kvadrat ildizini chiqarish.

$$x=\frac{-\left(-7\right)±7}{2}$$

-7 ning teskarisi 7 ga teng.

$$x=\frac{7±7}{2}$$

x=\frac{7±7}{2} tenglamasini yeching, bunda ± musbat. 7 ni 7 ga qo'shish.

$$x=\frac{14}{2}$$

14 ni 2 ga bo'lish.

$$x=7$$

x=\frac{7±7}{2} tenglamasini yeching, bunda ± manfiy. 7 dan 7 ni ayirish.

$$x=\frac{0}{2}$$

0 ni 2 ga bo'lish.

$$x=0$$

ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right) formulasi yordamida amalni hisoblang. x_{1} uchun 7 ga va x_{2} uchun 0 ga bo‘ling.

$$x^{2}-7x=\left(x-7\right)x$$

Baholash

$$x\left(x-7\right)$$