6n^2-30n+42

must solve using factoring by the greatest common factor

6n^2-30n+42 = 0

6 (n^2 - 5n + 7) = 0 divide by 6

n^2 -5n + 7 = 0

This has no real soluitons...... n = [ 5 ± i√3 ] / 2

Hey thank you so much, hopefully I can use this to figure out the rest of my homework lol.

No prob....