Factor them
19x^7=19*x*x*x*x*x*x*x
3x^5=3*x*x*x*x*x
common group is x*x*x*x*x or x^5
gcf is x^5
Answer:
Subtraction property
Step-by-step explanation:
Because it’s 12 subtracted by 6 to get 6
Part 1:
-3a+5(a-1)-7=
-3a+5a-5-7=
2a-11
Part 2:
a=-5
2(-5)-11=
-10-11=
-21
The greatest common factor for 12 and 42 is 6