The factorisation of x^2 - 9 is: - Vidyadip

MCQ

The factorisation of $x^2 - 9$ is:

A
$(x – 3)^2$
B
$(x + 3)^2$
✓
$(x + 3) (x – 3)$
D
None of these.

✓

Answer

Correct option: C.

$(x + 3) (x – 3)$

C. $(x + 3) (x - 3)$
Solution:
$x^2 - 9 = (x)^2 - (3)^2 $
$= (x - 3) (x + 3)$

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