Good evening everyone,
here is the statement:
Note the equation (E):
Z³-12z² + = 48z-128.
1.Check that 8 is the solution of (E)
2.a) determine real a, b, c such that for all z C (overall)
Z³ 12z²-48z-128 + = (z-8) (az² + bz + c).
b) Solve the equation in C (E)...