Mark ( ) against the correct answer: 7x^2 - 19x - 6 = ? - Vidyadip

MCQ

Mark $(\checkmark)$ against the correct answer: $7x^2 - 19x - 6 = \ ?$

✓
$(x - 3)(7x + 2)$
B
$(x + 3)(7x - 2)$
C
$(x - 3)(7x - 2)$
D
$(7x - 3)(x + 2)$

✓

Answer

Correct option: A.

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

A. $(x - 3)(7x + 2)$
Solution:
$7x^2- 19x - 6$
$= 7x^2- 21x + 2x - 6$
$= 7x(x - 3) + 2(x - 3)$
$= (x - 3)(7x + 2)$

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