Answer:
The equation is,

Step-by-step explanation:
According to the question, the equation is cubic and have roots -1 (with multiplicity of 2) and -2.
So, the equation is,

[Since, when a , b , c are the roots of a cubic equation, the equation is
given by
]
The one for 9 is 15
The one for 7 is 11
The one for 1 is -1
The one for 0 is -3
Answer:
(-x,-y)
Step-by-step explanation:
I checked inside the module where I learned it. So, I’m pretty sure this is the right answer.