A=4*(a^2+3b)+a^2+4b eching

$$A = 4 \cdot ( a ^ { 2 } + 3 b ) + a ^ { 2 } + 4 b$$

A uchun yechish

$$A=5a^{2}+16b$$

Yechim qadamlari

4 ga a^{2}+3b ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$A=4a^{2}+12b+a^{2}+4b$$

5a^{2} ni olish uchun 4a^{2} va a^{2} ni birlashtirish.

$$A=5a^{2}+12b+4b$$

16b ni olish uchun 12b va 4b ni birlashtirish.

$$A=5a^{2}+16b$$

a uchun yechish (complex solution)

$$a=-\frac{\sqrt{5\left(A-16b\right)}}{5}$$

$$a=\frac{\sqrt{5\left(A-16b\right)}}{5}$$

a uchun yechish

$$a=\frac{\sqrt{5\left(A-16b\right)}}{5}$$

$$a=-\frac{\sqrt{5\left(A-16b\right)}}{5}\text{, }A\geq 16b$$