Hey I don’t know much of this but I really recommend you to re ask this question but choose the other option to talk to an expert :)
The answer is: (z - 6)(z + 15)
z² + 9z - 90 = z*z + 15z - 6z - 6*15 =
= (z*z + 15z) - (6z + 6*15) =
= z(z + 15) - 6(z + 15) =
= (z - 6)(z + 15)
Answer:
a and c
Step-by-step explanation:
Answer:m is rational and n is irrational
Step-by-step explanation: