9c^2-18c eching

$$9 c ^ { 2 } - 18 c$$

Omil

$$9c\left(c-2\right)$$

Yechim qadamlari

9 omili.

$$9\left(c^{2}-2c\right)$$

Hisoblang: c^{2}-2c. c omili.

$$c\left(c-2\right)$$

Toʻliq ajratilgan ifodani qaytadan yozing.

$$9c\left(c-2\right)$$

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.

$$9c^{2}-18c=0$$

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.

$$c=\frac{-\left(-18\right)±\sqrt{\left(-18\right)^{2}}}{2\times 9}$$

\left(-18\right)^{2} ning kvadrat ildizini chiqarish.

$$c=\frac{-\left(-18\right)±18}{2\times 9}$$

-18 ning teskarisi 18 ga teng.

$$c=\frac{18±18}{2\times 9}$$

2 ni 9 marotabaga ko'paytirish.

$$c=\frac{18±18}{18}$$

c=\frac{18±18}{18} tenglamasini yeching, bunda ± musbat. 18 ni 18 ga qo'shish.

$$c=\frac{36}{18}$$

36 ni 18 ga bo'lish.

$$c=2$$

c=\frac{18±18}{18} tenglamasini yeching, bunda ± manfiy. 18 dan 18 ni ayirish.

$$c=\frac{0}{18}$$

0 ni 18 ga bo'lish.

$$c=0$$

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

$$9c^{2}-18c=9\left(c-2\right)c$$

Baholash

$$9c\left(c-2\right)$$