Issolvi -3(2x-1)+(x+1)(x-1)-5(x+2)

$$- 3 ( 2 x - 1 ) + ( x + 1 ) ( x - 1 ) - 5 ( x + 2 )$$

Evalwa

$$x^{2}-11x-8$$

Passi tas-Soluzzjonijiet

Uża l-propjetà distributtiva biex timmultiplika -3 b'2x-1.

$$-6x+3+\left(x+1\right)\left(x-1\right)-5\left(x+2\right)$$

Ikkunsidra li \left(x+1\right)\left(x-1\right). Il-multiplikazzjoni tista' tiġi ttrasformata fid-differenza tal-kwadrati li jużaw ir-regola: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.

$$-6x+3+x^{2}-1^{2}-5\left(x+2\right)$$

Ikkalkula 1 bil-power ta' 2 u tikseb 1.

$$-6x+3+x^{2}-1-5\left(x+2\right)$$

Naqqas 1 minn 3 biex tikseb 2.

$$-6x+2+x^{2}-5\left(x+2\right)$$

Uża l-propjetà distributtiva biex timmultiplika -5 b'x+2.

$$-6x+2+x^{2}-5x-10$$

Ikkombina -6x u -5x biex tikseb -11x.

$$-11x+2+x^{2}-10$$

Naqqas 10 minn 2 biex tikseb -8.

$$-11x-8+x^{2}$$

Espandi

$$x^{2}-11x-8$$

Passi tas-Soluzzjonijiet

Uża l-propjetà distributtiva biex timmultiplika -3 b'2x-1.

$$-6x+3+\left(x+1\right)\left(x-1\right)-5\left(x+2\right)$$

Ikkunsidra li \left(x+1\right)\left(x-1\right). Il-multiplikazzjoni tista' tiġi ttrasformata fid-differenza tal-kwadrati li jużaw ir-regola: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.

$$-6x+3+x^{2}-1^{2}-5\left(x+2\right)$$

Ikkalkula 1 bil-power ta' 2 u tikseb 1.

$$-6x+3+x^{2}-1-5\left(x+2\right)$$

Naqqas 1 minn 3 biex tikseb 2.

$$-6x+2+x^{2}-5\left(x+2\right)$$

Uża l-propjetà distributtiva biex timmultiplika -5 b'x+2.

$$-6x+2+x^{2}-5x-10$$

Ikkombina -6x u -5x biex tikseb -11x.

$$-11x+2+x^{2}-10$$

Naqqas 10 minn 2 biex tikseb -8.

$$-11x-8+x^{2}$$