Datrys (2x^2-x+2)(-x-3)

$$( 2 x ^ { 2 } - x + 2 ) ( - x - 3 )$$

Enrhifo

$$-2x^{3}-5x^{2}+x-6$$

Camau Ateb

Defnyddio’r briodwedd ddosbarthu i luosi 2x^{2}-x+2 â -x-3.

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

Lluosi -1 a -1 i gael 1.

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

Lluosi x a x i gael x^{2}.

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

Cyfuno -6x^{2} a x^{2} i gael -5x^{2}.

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

Lluosi 2 a -1 i gael -2.

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

Er mwyn lluosi pwerau sy’n rhannu’r un sail, adiwch eu esbonyddion. Adiwch 2 a 1 i gael 3.

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

Lluosi 2 a -1 i gael -2.

$$-2x^{3}-5x^{2}+3x-2x-6$$

Cyfuno 3x a -2x i gael x.

$$-2x^{3}-5x^{2}+x-6$$

Ehangu

$$-2x^{3}-5x^{2}+x-6$$

Camau Ateb

Defnyddio’r briodwedd ddosbarthu i luosi 2x^{2}-x+2 â -x-3.

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

Lluosi -1 a -1 i gael 1.

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

Lluosi x a x i gael x^{2}.

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

Cyfuno -6x^{2} a x^{2} i gael -5x^{2}.

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

Lluosi 2 a -1 i gael -2.

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

Er mwyn lluosi pwerau sy’n rhannu’r un sail, adiwch eu esbonyddion. Adiwch 2 a 1 i gael 3.

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

Lluosi 2 a -1 i gael -2.

$$-2x^{3}-5x^{2}+3x-2x-6$$

Cyfuno 3x a -2x i gael x.

$$-2x^{3}-5x^{2}+x-6$$