Question

Solve for x
\[\frac{ x }{ (x+1)(x-2) }=1\]

Answer 1

simplify your denominator first
\[\implies \frac{x}{x^2 + x - 2x - 2} = 1\]
simplify...
\[\implies \frac{x}{x^2 - x - 2} = 1\]
right?

Answer 2

ok, I thought it was already simplified?

Answer 3

by simplify i meant expand

Answer 4

right. please continue.

Answer 5

now cross multiply

Answer 6

You could also have started with\[x = (x + 1)(x - 2)\]\[ x = x^2 - x - 2\]\[ x^ 2 - 2x - 2 = 0\]This is a quadratic equation.

Answer 7

what do you get if you cross multiply \[\frac{x}{x^2 - x - 2} = 1\]
?

Answer 8

oh I get it.

Answer 9

cheers guys.

Answer 10

@Hollywood_chrissy Lord LG tells you to multiply \(x^2 - x - 2\) to both sides.

Answer 11

G'job

Answer 12

if G'job means good job... does that mean B'job means bad job?

Answer 13

...

Answer 14

@lgbasallote you're very punny.

Answer 15

you'll understand when you're older

Answer 16

I know what b'job is.

Answer 17

lol