(7+3)^2=7^2+2*7*3+3^2 eching

$$( 7 + 3 ) ^ { 2 } = 7 ^ { 2 } + 2 \times 7 \times 3 + 3 ^ { 2 }$$

Tasdiqlamoq

Yechim qadamlari

10 olish uchun 7 va 3'ni qo'shing.

$$10^{2}=7^{2}+2\times 7\times 3+3^{2}$$

2 daraja ko‘rsatkichini 10 ga hisoblang va 100 ni qiymatni oling.

$$100=7^{2}+2\times 7\times 3+3^{2}$$

2 daraja ko‘rsatkichini 7 ga hisoblang va 49 ni qiymatni oling.

$$100=49+2\times 7\times 3+3^{2}$$

14 hosil qilish uchun 2 va 7 ni ko'paytirish.

$$100=49+14\times 3+3^{2}$$

42 hosil qilish uchun 14 va 3 ni ko'paytirish.

$$100=49+42+3^{2}$$

91 olish uchun 49 va 42'ni qo'shing.

$$100=91+3^{2}$$

2 daraja ko‘rsatkichini 3 ga hisoblang va 9 ni qiymatni oling.

$$100=91+9$$

100 olish uchun 91 va 9'ni qo'shing.

$$100=100$$

100 va 100 ni taqqoslang.

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