Question

Please help with the following. Short Answer. Add the following:
(-7.4x2 + 1.8x – 8.5) + (2x2 – 6x + 2.3)

Answer 1

You can actually get rid of the parentheses and just add like terms together.

Answer 2

http://www.wolframalpha.com/input/?i=%28-7.4x2+%2B+1.8x+%E2%80%93+8.5%29+%2B+%282x2+%E2%80%93+6x+%2B+2.3%29

Answer 3

add all with same variable
(-7.4+2)x^2+(1.8-6)x+(-8.5+2.3)
-5.4x^2-4.2x-6.2