Question

Simplify 1+4/x / 1-16 x^2

Answer 1

1+4/x                       x + 4

------------   =            -------------  

1-16 x^2           x(-4x + 1) (4x + 1)

hope this helps, it probs won't but-

Answer 2

Answer: $\frac{x+{4} }{x - 16x^{3} }$

Steps:

• $\frac{1+\frac{4}{x} }{1-16x^{2} }$

• $\frac{\frac{x}{x} +\frac{4}{x} }{(1-4x)(1+4x) }$ (get common denominator (x) for top and factor bottom)

• $\frac{x+{4} }{x(1-4x)(1+4x) }$ (add numberator, then move x to denominator)

• $\frac{x+{4} }{(x-4x^{2} )(1+4x) }$ (multiply x and (1-4x) )

• $\frac{x+{4} }{x+4x^{2} - 4x^{2} - 16x^{3} }$ (FOIL denominator)

• $\frac{x+{4} }{x - 16x^{3} }$ (simplify)

Sorry about the delay. Hope this helps!