j^2=j eching

$$j ^ { 2 } = j$$

j uchun yechish

$$j=1$$

$$j=0$$

Faktorlash qadamlari

Ikkala tarafdan j ni ayirish.

$$j^{2}-j=0$$

j omili.

$$j\left(j-1\right)=0$$

Tenglamani yechish uchun j=0 va j-1=0 ni yeching.

$$j=0 j=1$$

Kvadrat tenglamalaridan foydalanish qoidalari

Ikkala tarafdan j ni ayirish.

$$j^{2}-j=0$$

Ushbu tenglama standart shaklidadir: ax^{2}+bx+c=0. Kvadrat tenglama formulasida, \frac{-b±\sqrt{b^{2}-4ac}}{2a} 1 ni a, -1 ni b va 0 ni c bilan almashtiring.

$$j=\frac{-\left(-1\right)±\sqrt{1}}{2}$$

1 ning kvadrat ildizini chiqarish.

$$j=\frac{-\left(-1\right)±1}{2}$$

-1 ning teskarisi 1 ga teng.

$$j=\frac{1±1}{2}$$

j=\frac{1±1}{2} tenglamasini yeching, bunda ± musbat. 1 ni 1 ga qo'shish.

$$j=\frac{2}{2}$$

2 ni 2 ga bo'lish.

$$j=1$$

j=\frac{1±1}{2} tenglamasini yeching, bunda ± manfiy. 1 dan 1 ni ayirish.

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

0 ni 2 ga bo'lish.

$$j=0$$

Tenglama yechildi.

$$j=1 j=0$$

Kvadratni yakunlash bo'yicha qadamlar

Ikkala tarafdan j ni ayirish.

$$j^{2}-j=0$$

-1 ni bo‘lish, x shartining koeffitsienti, 2 ga -\frac{1}{2} olish uchun. Keyin, -\frac{1}{2} ning kvadratini tenglamaning ikkala tarafiga qo‘shing. Ushbu qadam tenglamaning chap qismini mukammal kvadrat sifatida hosil qiladi.

$$j^{2}-j+\left(-\frac{1}{2}\right)^{2}=\left(-\frac{1}{2}\right)^{2}$$

Kasrning ham suratini, ham maxrajini kvadratga ko'paytirib -\frac{1}{2} kvadratini chiqarish.

$$j^{2}-j+\frac{1}{4}=\frac{1}{4}$$

j^{2}-j+\frac{1}{4} omili. Odatda, x^{2}+bx+c mukammal kvadrat bo'lsa, u doimo \left(x+\frac{b}{2}\right)^{2} omil sifatida bo'lishi mumkin.

$$\left(j-\frac{1}{2}\right)^{2}=\frac{1}{4}$$

Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.

$$\sqrt{\left(j-\frac{1}{2}\right)^{2}}=\sqrt{\frac{1}{4}}$$

Qisqartirish.

$$j-\frac{1}{2}=\frac{1}{2} j-\frac{1}{2}=-\frac{1}{2}$$

\frac{1}{2} ni tenglamaning ikkala tarafiga qo'shish.

$$j=1 j=0$$