The sum and difference of two expressions are 5x² – x – 4 and x² + 9 x – 10 respectively

The sum and difference of two expressions are 5x² – x – 4 and x² + 9 x – 10 respectively. The HCF of the two expressions will be
(a) (x + 1)
(b) (x – 1)
(c) (3x + 7)
(d) 2x – 3)

Anurag Mishra Professor Asked on 19th February 2016 in Maths.
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    Answer: (b) (x – 1)

    Anurag Mishra Professor Answered on 20th February 2016.
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