consider this expression 9/4x^2-12x + 7x/x^2-9 the least common denominator of the two rational is (4x or 2x or x)(x-3 or x-12 or x-4 or x-6)( x+4 or x+3 or x +9 or x+6)

what? ?

what type of question is thiss

step-by-step explanation:

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: