b uchun yechish
b=4k^{2}+1
k uchun yechish
k=\frac{\sqrt{b-1}}{2}
k=-\frac{\sqrt{b-1}}{2}\text{, }b\geq 1
Baham ko'rish
Klipbordga nusxa olish
b-4k=4k^{2}-4k+1
\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(2k-1\right)^{2} kengaytirilishi uchun ishlating.
b=4k^{2}-4k+1+4k
4k ni ikki tarafga qo’shing.
b=4k^{2}+1
0 ni olish uchun -4k va 4k ni birlashtirish.
Misollar
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