(2 + 3) (z-3) - z (z + 5) = 6
Answers
Answered by
1
Answer:
z=-3
Step-by-step explanation:
pls mark me brainliest....
Answered by
1
Step-by-step explanation:
(5) (z-3) - z² + 5z = 6
5z - 15 - z² + 5z = 6
z² -10z + 21
z² - 3z - 7z + 21 = 0
z(z-3) -7(z-3) = 0
so,
z= - 3
or
z=-7
Similar questions