Which of the following terms means to “weaken or destroy the foundations of something”?
a.
undermine
b.
partition
c.
blasphemy
d.
patronize

To undermine something means destabilizing an idea or effort. From what I recall, this term derives from the military tactic of mining below fort or castle walls, making them structurally unstable and easier to breach.

South wales composes a lot of coal in that region.

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