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

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

Evalwa

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

Passi tas-Soluzzjonijiet

Ikkombina 4x^{2} u -3x^{2} biex tikseb x^{2}.

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

Naqqas 5 minn -7 biex tikseb -12.

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

Ikkombina 7x^{4} u -3x^{4} biex tikseb 4x^{4}.

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

Żid -12 u 5 biex tikseb -7.

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

Ikkombina x u -8x biex tikseb -7x.

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

Ikkombina x^{3} u 2x^{3} biex tikseb 3x^{3}.

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

Iddifferenzja w.r.t. x

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