Question

Which is the simplified form of 8x - 24 over 3x - 9?

Answer 1

factor top and bottom and see what you can cancel - i'll do the top bit

8(x-3)
-----
3x-9

now factor the bottom part and see what can b done to simplify

Answer 2

Um, factor out the x- 3 and the x - 9?

Answer 3

you need to take out the gcf of 3x and 9

Answer 4

gcf = 3

Answer 5

Which is 3, right?

Answer 6

yup

Answer 7

\(\Large \color{purple}{\rightarrow {8\cancel{(x - 3)} \over 3\cancel{(x - 3)}} }\)

\(\Large \color{purple}{\rightarrow {8 \over 3} }\)

(IF x is not equal to 3)

Answer 8

so 3x - 9 = 3( x - 3 )

Answer 9

Do you think you cuold help me with some more?

Answer 10

Sure!

Answer 11

Okay. :)
Which factor do you cancel from the numerator and denominator to simplify x^2 + 4x - 5 over x^2 - 25?