Question

Factorise 1)×3-2×2-×+2​

Answer 1

Answer:

1×3=4×2=8×2=16×2 = +32

Answer 2

Given expression is 1−27a

3

We can write the above expression as:

=1

3

−(3a)

3

Using the formula, a

3

−b

3

=(a−b)(a

2

+ab+b

2

), we get:

⇒(1−3a)[1

2

+1×3a+(3a)

2

]

∴ (1−3a)(1+3a+9a

2

)