Answer:
-2n^2 - 12n, that's how I understand
U.S customary system also known as the English system.
Founded by the British, but they dropped it. Now only three countries in the world still use this system.
Answer:
You can’t add 3x with 2x because to get term to the other side of the equal sign, you need to do the inverse (opposite) of the number. Since 3x is positive (basically with a + in the front) you SUBTRACT 3x for it to get to the other side. Which will get u -1x or just -x.
