Contact metamorphism
is caused by high temperatures
usually affects a very large area
happens when mountains are formed
occurs along fault lines

Contact metamorphism occurs typically around intrusive igneous rocks and is caused by high temperatures

This high temperature usually caused by the intrusion of magma into cooler country rock, causing a metamorphic reaction when it came to contact.

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2