Question

Simplifying rational expressions.

Answer 1

7. -12x^4/x^4+8x^5

a. -12/1+8x; where x=-1/8 <--
b. -12/1+8x; where x=-1/8, 0
c. -12/9x; where x=0
d. -12/9



8. x-2/x^2+4x-12

a. 1/x+6; where x=-6
b.1/x+6; where x=-6,2
c. 1/x+2; where x=2
d. x+2 <--

Answer 2

\[\frac{ -12x ^{4} }{x ^{4}\left( 1+8x \right) }=\frac{ -12 }{1+8x }\]

Answer 3

am i right with the first one?

Answer 4

YES