Math Help PLEASE: 7. Subtract and simplify: (3x2 + 5x – 4) – (2x2 – 7x – 1) (Points : 5) –x2 + 12x – 5 –x2 – 2x – 3 5x2 – 2x – 3 x2 + 12x – 3?

I can't understand this - are there two questions or one?

What's the (Points : 5) mean?

Anyway - the way to simplify this is collect terms in x^2, x and constants, leaving you with ax^2 + bx + c