Factorize:
We have,
Now by using middle-term splitting, we get
= 1/3 x2 – 3x + x – 9
= x (x/3 – 3) + (x – 9)
= x/3 (x – 9) + 1 (x – 9)
= (x – 9) (x/3 + 1)
= (x – 9) × (x – 3)/3
= 1/3 (x – 9) (x + 3)
Hence,
The given expression can be factorized as:
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