Answer:
c 7 mins
Step-by-step explanation:
10.43398113
decimal for
3,6,-2
a+2a+b = 7
2a^2b = -36
a*2a + ab + 2ab = 0
or, a(2a+3b) = 0
so, b = -2a/3
Solve those and you find 3,6,-2
x={-13,-2}
(x+13)(x+2)=0
x+13=0
x=-13
x+2=0
x=-2