Tick (✓) the correct answer:

Question:

Tick (✓) the correct answer:

x3 − 144x = ?

(a) x(x − 12)2

(b) x(x + 12)2
(c) x(x − 12)(x + 12)

(d) none of these

Solution:

(c) x(x − 12)(x + 12)

$x^{3}-144 x$

$=x\left(x^{2}-144\right)$

$=x(x-12)(x+12)$

 

Leave a comment