Answer:
2 (2r + t)
Step-by-step explanation:
2r + (t + r) × 2
➡️ 2r + 2 (t + r)
➡️ 2 (r + t + r)
➡️ 2 (2r + t)
Another written expression is 5x+25
Answer:
C
All Real Numbers, this is because it has infinitely MANY solutions.
Step-by-step explanation:
Answer:

Step-by-step explanation:
So we have the expression:

And we wish to factor it.
First, let's make a substitution. Let's let u be equal to x². Therefore, our expression is now:

This is a technique called quadratic u-substitution. Now, we can factor in this form.
We can use the numbers -3 and -2. So:

For the first two terms, factor out a u.
For the last two terms, factor out a -3. So:

Grouping:

Now, substitute back the x² for u:

And this is the simplest form.
And we're done!