MCQ
Tick $(\checkmark)$ the correct answer:
$x^3 - 144x = ?$
$x^3 - 144x = ?$
- A$x(x - 12)^2$
- B$x(x + 12)^2$
- ✓$x(x - 12)(x + 12)$
- DNone of these
✓
Answer
Correct option: C.
$x(x - 12)(x + 12)$
C. $x(x - 12)(x + 12)$
Solution:
$x^3 - 144x$
$= x(x^2 - 144)$
$= x{(x)^2 - (12)^2}$
$= x(x - 12)(x + 12)$
Solution:
$x^3 - 144x$
$= x(x^2 - 144)$
$= x{(x)^2 - (12)^2}$
$= x(x - 12)(x + 12)$
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