Question

lim x->-2 x^4 - 16 / x+2


lim x->1 x^2 - 1 / √x (- 1)

Answer 1

$lim_{xto -2} frac{x^4-16}{x+2} = lim_{xto -2} frac{(x^2-4)(x^2+4)}{x+2} = lim_{xto -2} frac{(x-2)(x+2)(x^2+4)}{x+2} =$-32