(7x^{4}-5x^{5}+4x^{2}-7)+(x^3-3x^2-5+x)+(-3x^4+5-8x+2x^3) eching

$$( 7 x ^ { 4 } - 5 x ^ { 5 } + 4 x ^ { 2 } - 7 ) + ( x ^ { 3 } - 3 x ^ { 2 } - 5 + x ) + ( - 3 x ^ { 4 } + 5 - 8 x + 2 x ^ { 3 } )$$

Baholash

$$-5x^{5}+4x^{4}+3x^{3}+x^{2}-7x-7$$

Yechim qadamlari

x^{2} ni olish uchun 4x^{2} va -3x^{2} ni birlashtirish.

$$7x^{4}-5x^{5}+x^{2}-7+x^{3}-5+x-3x^{4}+5-8x+2x^{3}$$

-12 olish uchun -7 dan 5 ni ayirish.

$$7x^{4}-5x^{5}+x^{2}-12+x^{3}+x-3x^{4}+5-8x+2x^{3}$$

4x^{4} ni olish uchun 7x^{4} va -3x^{4} ni birlashtirish.

$$4x^{4}-5x^{5}+x^{2}-12+x^{3}+x+5-8x+2x^{3}$$

-7 olish uchun -12 va 5'ni qo'shing.

$$4x^{4}-5x^{5}+x^{2}-7+x^{3}+x-8x+2x^{3}$$

-7x ni olish uchun x va -8x ni birlashtirish.

$$4x^{4}-5x^{5}+x^{2}-7+x^{3}-7x+2x^{3}$$

3x^{3} ni olish uchun x^{3} va 2x^{3} ni birlashtirish.

$$4x^{4}-5x^{5}+x^{2}-7+3x^{3}-7x$$

x ga nisbatan hosilani topish

$$-25x^{4}+16x^{3}+9x^{2}+2x-7$$