h2 - h
h2 - 25
Trying to factor by splitting the middle term
1.1 Factoring h2 - h - 20
The first term is, h2 its coefficient is 1 .
The middle term is, -h its coefficient is -1 .
The last term, "the constant", is -20
: Multiply the coefficient of the first term by the constant 1 • -20 = -20
: Find two factors of -20 whose sum equals the coefficient of the middle term, which is -1 .