Question

Help please
best answer rewarded
screencap in comments

Answer 1

Break this up into pieces

Can you factor \(m^2-4\)?

Answer 2

Nope I have no idea how to do any of this

Answer 3

$$
(m+2)(m-2)=m^2-2m+2m-4=m^2-4
$$
Do you see that?

Answer 4

we can factor out like terms and then cancel anything that's the same in the numerator and the denominator.

Answer 5

oh hi

Answer 6

\[\frac{3m-6}{4m+12}\] let's consider this part of the problem... there is a number in common on 3m -6. What number can I factor out? also what is 3/3 and -6/3

similarly what number can I factor out? what is 4/4 and 12/4 for the denominator..

Answer 7

I can pull out a 3 for 3m-6 and I will have 3(m-2).
I can pull out a 4 for 4m+12 and I will have 4(m+3)

Answer 8

\[\frac{m^2+5m+6}{m^2-4}\] this requires factoring as well. We have a perfect square on the bottom of the denominator. now we just need to factor the numerator which is \[m^2+5m+6\]

We need to focus on all combinations that make 6 and use addition or subtraction to make a 5

the combinations of 6 are

6 and 1
1 and 6
2 and 3
3 and 2

Answer 9

6 and 1 isn't going to work . If I add them together it's 7... subtract and it's a 5. Well why can't we use this? Because our equation has double + signs... so it requires all numbers to be positive.

Answer 10

2 and 3 will work just fine. Not only is it 2 x 3 = 6, but 2+3 =5 so our \[m^2+5m+6 \rightarrow (m+2)(m+3)\]

Answer 11

\[\frac{3(m-2)}{4(m+3)} \times \frac{(m+2)(m+3)}{(m+2)(m-2)}\]

Answer 12

there are a bunch of terms to cancel out I see (m+3) on the numerator and denominator...the same case happens for (m-2) and (m+2). ANd then you are left with \[\frac{3}{4}\]