Datrys left(5+9right)left(b+8right)left(b+7right)left(b+5right)+1

$$\left( 5+9 \right) \left( b+8 \right) \left( b+7 \right) \left( b+5 \right) +1$$

Enrhifo

$$14\left(b+5\right)\left(b+7\right)\left(b+8\right)+1$$

Camau Ateb

Adio 5 a 9 i gael 14.

$$14\left(b+8\right)\left(b+7\right)\left(b+5\right)+1$$

Defnyddio’r briodwedd ddosbarthu i luosi 14 â b+8.

$$\left(14b+112\right)\left(b+7\right)\left(b+5\right)+1$$

Cyfrifwch y briodoledd ddosrannol drwy luosi pob 14b+112 gan bob b+7.

$$\left(14b^{2}+98b+112b+784\right)\left(b+5\right)+1$$

Cyfuno 98b a 112b i gael 210b.

$$\left(14b^{2}+210b+784\right)\left(b+5\right)+1$$

Cyfrifwch y briodoledd ddosrannol drwy luosi pob 14b^{2}+210b+784 gan bob b+5.

$$14b^{3}+70b^{2}+210b^{2}+1050b+784b+3920+1$$

Cyfuno 70b^{2} a 210b^{2} i gael 280b^{2}.

$$14b^{3}+280b^{2}+1050b+784b+3920+1$$

Cyfuno 1050b a 784b i gael 1834b.

$$14b^{3}+280b^{2}+1834b+3920+1$$

Adio 3920 a 1 i gael 3921.

$$14b^{3}+280b^{2}+1834b+3921$$

Ehangu

$$14b^{3}+280b^{2}+1834b+3921$$

Camau Ateb

Adio 5 a 9 i gael 14.

$$14\left(b+8\right)\left(b+7\right)\left(b+5\right)+1$$

Defnyddio’r briodwedd ddosbarthu i luosi 14 â b+8.

$$\left(14b+112\right)\left(b+7\right)\left(b+5\right)+1$$

Cyfrifwch y briodoledd ddosrannol drwy luosi pob 14b+112 gan bob b+7.

$$\left(14b^{2}+98b+112b+784\right)\left(b+5\right)+1$$

Cyfuno 98b a 112b i gael 210b.

$$\left(14b^{2}+210b+784\right)\left(b+5\right)+1$$

Cyfrifwch y briodoledd ddosrannol drwy luosi pob 14b^{2}+210b+784 gan bob b+5.

$$14b^{3}+70b^{2}+210b^{2}+1050b+784b+3920+1$$

Cyfuno 70b^{2} a 210b^{2} i gael 280b^{2}.

$$14b^{3}+280b^{2}+1050b+784b+3920+1$$

Cyfuno 1050b a 784b i gael 1834b.

$$14b^{3}+280b^{2}+1834b+3920+1$$

Adio 3920 a 1 i gael 3921.

$$14b^{3}+280b^{2}+1834b+3921$$