X2 + 5x + 6 select one of the factors of the quadratic expression.

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Identify the number as a rational or irrational.explain. 127

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"