How do you factor an equation with a squared number in it. Example 5 minus 8x plus 3 times x squared?

5 - 8x + 3x2

= 3x2 - 8x + 5 (since the sign of the second term is negative, then 5 can be factored as (-1)(-5))

= (3x - )(x - ) (try to put 1 or 5 to the empty places, in order to obtain -8x)

= (3x - 5)(x - 1)