Question

24 POINTS!!!!!!!!!!!!!!!!!
Choose the correct solution when you factor: 3x - 21

Answer 1

$3x-21=3(x-7)$

If you're solving this equation when it's set equal to zero, the only solution would be $x=7$

Answer 2

Here, take 3 as a common 'cause it is GCD of 3 and 21
3x - 21 = 3(x - 7)

In short, Your Answer would be 3(x - 7)

Hope this helps!