Q. 11

7x2 - 19x - 6 = ?
A. (x - 3)(7x + 2)

B. (x + 3)(7x - 2)

C. (x - 3) (7x - 2)

D. (7x - 3)(x + 2)

Answer :

7x2 - 19x - 6


By using splitting the middle term


= 7 x2 - 19x - 6


= 7x2 + ( - 21 + 2)x - 6


= 7x(x - 3) + 2(x - 3)


= (x - 3)(7x + 2)

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