Answer:
4 because that's where the lines intercept
x^3-10x^2=27x-18=0 has no solutions
x^3-10x^2-27x-18=0 has 3 solutions
x^3-10x^2-27x-18=0 also has three solutions
135
with math any absolute number cant be negative so you just make it positive
a)
Step-by-step explanation: