Question

3a² – 1- 2a factorise by splitting the middle term​

Answer 1

Answer:

$a = \frac{ - 1}{3} and1$

Step-by-step explanation:

$= > 3 {a}^{2} - 1 - 2a \\ \\ = > 3 {a}^{2} - 2a - 1 \\ \\ = > 3 {a}^{2} - 3a + 1a - 1 \\ \\ = > 3a(a - 1) + 1(a - 1) \\ \\ = > (3a + 1)(a - 1) = 0 \\ \\ = > (3a + 1) = 0 \: and \: (a - 1) = 0 \\ \\ = > a = \frac{ - 1}{3} \: and \: 1$

1. Follow me
2. Mark as brainlist answer

Answer 2

Answer:

hope u will understand

Step-by-step explanation:

thank u so much