Question

8/x + 15/x^2 = -1

A. x = 5, –3
B. x = –5, –3
C. x = –5, 3
D. x = 5, 3

Thanks.

Answer 1

multply each term by x^2

\[8x + 15 = x^2\]

\[x^2 + 8x + 15 = 0\]

factorise the quadratic

(x+3)(x+5) = 0

now you can find your solutions

Answer 2

I got D. Is that right?

Answer 3

nope... after factorising

solve these equation

x + 5 = 0

x + 3 = 0

they give the solutions

Answer 4

B?

Answer 5

yes

Answer 6

Okay. I always mess up with making the answer positive or negative. Thanks.