Datrys 6(a+1)^2+11(a+1)+3

$$6 ( a + 1 ) ^ { 2 } + 11 ( a + 1 ) + 3$$

Enrhifo

$$\left(2a+5\right)\left(3a+4\right)$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(p+q\right)^{2}=p^{2}+2pq+q^{2} i ehangu'r \left(a+1\right)^{2}.

$$6\left(a^{2}+2a+1\right)+11\left(a+1\right)+3$$

Defnyddio’r briodwedd ddosbarthu i luosi 6 â a^{2}+2a+1.

$$6a^{2}+12a+6+11\left(a+1\right)+3$$

Defnyddio’r briodwedd ddosbarthu i luosi 11 â a+1.

$$6a^{2}+12a+6+11a+11+3$$

Cyfuno 12a a 11a i gael 23a.

$$6a^{2}+23a+6+11+3$$

Adio 6 a 11 i gael 17.

$$6a^{2}+23a+17+3$$

Adio 17 a 3 i gael 20.

$$6a^{2}+23a+20$$

Ehangu

$$6a^{2}+23a+20$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(p+q\right)^{2}=p^{2}+2pq+q^{2} i ehangu'r \left(a+1\right)^{2}.

$$6\left(a^{2}+2a+1\right)+11\left(a+1\right)+3$$

Defnyddio’r briodwedd ddosbarthu i luosi 6 â a^{2}+2a+1.

$$6a^{2}+12a+6+11\left(a+1\right)+3$$

Defnyddio’r briodwedd ddosbarthu i luosi 11 â a+1.

$$6a^{2}+12a+6+11a+11+3$$

Cyfuno 12a a 11a i gael 23a.

$$6a^{2}+23a+6+11+3$$

Adio 6 a 11 i gael 17.

$$6a^{2}+23a+17+3$$

Adio 17 a 3 i gael 20.

$$6a^{2}+23a+20$$