Question

Subtract:
x^2/x-6 - 6x/x-6

Answer 1

\[\frac{ x^{2} }{x-6? } - \frac{ 6x }{ x-6}\]

Answer 2

The denominator is common.

hence - x^2-6x/x-6

=> x(x-6)/x-6.

Answer 3

So I multiply both numerators by the denominator?

Answer 4

@luckythebest

Answer 5

Nope. you don't do that.

The thing is, since the denominator is the same,

\[\frac{ x^2 }{ x-6 } - \frac{ 6x }{ x-6 }\]

Answer 6

instead of doing this - you can do x^2 - 6x

\[\frac{ x^2-6x }{ x-6 }\]

Answer 7

\[\frac{ x(x-6) }{ x-6 }\]

Answer 8

So do I cross out?

Answer 9

@Ozzy733 yep. the answer is X

Answer 10

Great, thanks so much!