Answer:
x +5
Step-by-step explanation:
5x-2+3x+4+2x+9
5x-2x=3x
3x-3x=x
-2+2=0
0+4=4
4-9 =5
n+5=9 is the answer for this
Answer:
add 1;6 and 6,2 hope this helps ;)
True is the correct answer
it opens down because before x^2 is -2 (if it would be 2, it would open up)...and function, which opens up has a maximum value every time