Find the factor from z²+ 1/z + 2 - 2z - 2/z is
Answers
Answered by
0
Answer:
1/z
Step-by-step explanation:
please give me brainlyest
,,.
Answered by
0
Answer:
(z + - 2) (z + )
Step-by-step explanation:
[FIRST SQUARE (z + ) USING IDENTITY ]
(z + )² = z² + + 2
[NOW (- 2z - ) IS MISSING, SO ADD THEM BOTH THE SIDES]
⇒ (z + ) × (z + ) - 2z - = z² + + 2 - 2z -
⇒ (z + ) × (z + ) - 2(z + ) = z² + + 2 - 2z -
[ HERE z + AND - 2 ARE COMMON]
⇒ (z + - 2) (z + ) = z² + + 2 - 2z -
HENCE FACTORS OF z² + + 2 - 2z - ARE ⇒
(z + - 2) (z + )
THANK YOU
Similar questions