C=-x(3x+1)+(-5)(9x-1) eching

$$C = - x ( 3 x + 1 ) + ( - 5 ) ( 9 x - 1 )$$

C uchun yechish

$$C=5-46x-3x^{2}$$

Yechim qadamlari

-x ga 3x+1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$C=3\left(-x\right)x-x-5\left(9x-1\right)$$

-5 ga 9x-1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$C=3\left(-x\right)x-x-45x+5$$

x^{2} hosil qilish uchun x va x ni ko'paytirish.

$$C=3\left(-1\right)x^{2}-x-45x+5$$

-3 hosil qilish uchun 3 va -1 ni ko'paytirish.

$$C=-3x^{2}-x-45x+5$$

-46x ni olish uchun -x va -45x ni birlashtirish.

$$C=-3x^{2}-46x+5$$

x uchun yechish (complex solution)

$$x=\frac{\sqrt{544-3C}-23}{3}$$

$$x=\frac{-\sqrt{544-3C}-23}{3}$$

x uchun yechish

$$x=\frac{\sqrt{544-3C}-23}{3}$$

$$x=\frac{-\sqrt{544-3C}-23}{3}\text{, }C\leq \frac{544}{3}$$