(4a^{2}+b^2+a-5c+7)+(c^2-5+a-3b^2-6a^2) eching

$$( 4 a ^ { 2 } + b ^ { 2 } + a - 5 c + 7 ) + ( c ^ { 2 } - 5 + a - 3 b ^ { 2 } - 6 a ^ { 2 } )$$

Baholash

$$2-5c+c^{2}-2b^{2}+2a-2a^{2}$$

Yechim qadamlari

2 olish uchun 7 dan 5 ni ayirish.

$$4a^{2}+b^{2}+a-5c+2+c^{2}+a-3b^{2}-6a^{2}$$

2a ni olish uchun a va a ni birlashtirish.

$$4a^{2}+b^{2}+2a-5c+2+c^{2}-3b^{2}-6a^{2}$$

-2b^{2} ni olish uchun b^{2} va -3b^{2} ni birlashtirish.

$$4a^{2}-2b^{2}+2a-5c+2+c^{2}-6a^{2}$$

-2a^{2} ni olish uchun 4a^{2} va -6a^{2} ni birlashtirish.

$$-2a^{2}-2b^{2}+2a-5c+2+c^{2}$$

a ga nisbatan hosilani topish

$$2-4a$$