Issolvi (6-x)(20+2x)+(40-2x)(4+x)

$$( 6 - x ) ( 20 + 2 x ) + ( 40 - 2 x ) ( 4 + x )$$

Evalwa

$$280+24x-4x^{2}$$

Passi tas-Soluzzjonijiet

Applika l-propjetà distributtiva billi timmultiplika kull terminu ta' 6-x b'kull terminu ta' 20+2x.

$$120+12x-20x-2x^{2}+\left(40-2x\right)\left(4+x\right)$$

Ikkombina 12x u -20x biex tikseb -8x.

$$120-8x-2x^{2}+\left(40-2x\right)\left(4+x\right)$$

Applika l-propjetà distributtiva billi timmultiplika kull terminu ta' 40-2x b'kull terminu ta' 4+x.

$$120-8x-2x^{2}+160+40x-8x-2x^{2}$$

Ikkombina 40x u -8x biex tikseb 32x.

$$120-8x-2x^{2}+160+32x-2x^{2}$$

Żid 120 u 160 biex tikseb 280.

$$280-8x-2x^{2}+32x-2x^{2}$$

Ikkombina -8x u 32x biex tikseb 24x.

$$280+24x-2x^{2}-2x^{2}$$

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

$$280+24x-4x^{2}$$

Espandi

$$280+24x-4x^{2}$$

Passi tas-Soluzzjonijiet

Applika l-propjetà distributtiva billi timmultiplika kull terminu ta' 6-x b'kull terminu ta' 20+2x.

$$120+12x-20x-2x^{2}+\left(40-2x\right)\left(4+x\right)$$

Ikkombina 12x u -20x biex tikseb -8x.

$$120-8x-2x^{2}+\left(40-2x\right)\left(4+x\right)$$

Applika l-propjetà distributtiva billi timmultiplika kull terminu ta' 40-2x b'kull terminu ta' 4+x.

$$120-8x-2x^{2}+160+40x-8x-2x^{2}$$

Ikkombina 40x u -8x biex tikseb 32x.

$$120-8x-2x^{2}+160+32x-2x^{2}$$

Żid 120 u 160 biex tikseb 280.

$$280-8x-2x^{2}+32x-2x^{2}$$

Ikkombina -8x u 32x biex tikseb 24x.

$$280+24x-2x^{2}-2x^{2}$$

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

$$280+24x-4x^{2}$$