Psychguy98
Junior Member
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- Dec 17, 2010
- Messages
- 147
x^2 - 9x + 20/ x^2 - x - 12 =
Do i reduce the 9, 20 and 12? Thanks.
Do i reduce the 9, 20 and 12? Thanks.
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Reduce
- Thread starter Psychguy98
- Start date
Please use your grouping symbols.
Here is what you have written:
\(\displaystyle x^{2}-9x+\frac{20}{x^{2}}-x-12\)
I am pretty sure you mean:
\(\displaystyle \frac{x^{2}-9x+20}{x^{2}-x-12}\)
If so, factor the top and bottom, then make any relevant cancellations.
Here is what you have written:
\(\displaystyle x^{2}-9x+\frac{20}{x^{2}}-x-12\)
I am pretty sure you mean:
\(\displaystyle \frac{x^{2}-9x+20}{x^{2}-x-12}\)
If so, factor the top and bottom, then make any relevant cancellations.
Psychguy98
Junior Member
- Joined
- Dec 17, 2010
- Messages
- 147
so like this (x - 5) (x -4) / (x -4) (x +3)
x - 4 cancels out leaving x/3 / x +3 ?
x - 4 cancels out leaving x/3 / x +3 ?
Not quite: (x - 5) (x -4) / [(x -4) (x +3)] ; TRY and remember that!Psychguy98 said:so like this (x - 5) (x -4) / (x -4) (x +3)