Question

factor 2x^2-16x+30

Answer 1

Whenever there is a prime number in front of x, you can set the factor up like so:
(ax +/- ___)(x +/- ___)

Answer 2

Where a is the coefficient of x^2

Answer 3

So in this case, (2x +/- ___)(x +/- ___)

Answer 4

or you could take out the GCF which is 2 then see if it will factor further
2x^2 - 16x + 30
= 2(x^2 - 8x + 15)