(z+3)(z-9)=0
To solve this equation, we need to set each factor equal to zero and solve for z:
1) z + 3 = 0
z = -3
2) z - 9 = 0
z = 9
Therefore, the solutions to the equation (z+3)(z-9) = 0 are z = -3 and z = 9.
1) z + 3 = 0
z = -3
2) z - 9 = 0
z = 9
Therefore, the solutions to the equation (z+3)(z-9) = 0 are z = -3 and z = 9.