Answer:
17
Step-by-step explanation:
You have to plug -2 into every x in the function, so:
(-2)^2 - 3 (-2) + 7
4 + 6 + 7
Answer: -100r-1425 (this is if you are trying to simplify it)
see below
6+9x^2
Rewriting in decreasing powers of x
9x^2 +0x + 6
ax^2+bx+c
a = 9
b =0
c = 6
8/7.8=
8 x 8/7=
64/7=
9.14
The answer is 9 pieces