Factorize:
15x2 – x – 28
We have,
Now by using middle-term splitting, we get
= 15x2 + 20x - 21x - 28
= 5x (3x + 4) - 7 (3x + 4)
= (3x + 4) (5x - 7)
Hence,
The given expression can be factorized as:
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