college
posted by Karen on .
One side of a triangle is 2 cm shorter than the base. The other side is 3 cm longer than the base. What lengths of the base will allow the perimeter to be greater than 19 cm?

Let x = base
x  2 = one side
x + 3 = other side
x + x2 + x +3 ≥ 19
Solve for x.