Question

Factorise and simplify : $\frac{2x^5-2x}{2x^3+2x}$

• A. $x^2-1$
• B. $x^2+1$
• C. $x-1$
• D. $x+1$

Answer 1

Answer: (A)

$x^2-1$

$\frac{2x^5-2x}{2x^3+2x}=\frac{2x(x^4-1)}{2x(x^2+1)}$
$=\frac{(x^2-1)(x^2+1)}{(x^2+1)}$
$=x^2-1$
Option A is correct.