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Mama L [17]
3 years ago
7

(Z-5)(z+1)=0 HELP! Need soon

Mathematics
1 answer:
Rzqust [24]3 years ago
5 0

Answer:

(z - 5)(z + 1) = 0

• either (z - 5) or (z + 1) is 0

<u>»</u><u> </u><u>For</u><u> </u><u>(</u><u>z</u><u> </u><u>-</u><u> </u><u>5</u><u>)</u>

z - 5 = 0 \\ { \underline{z = 5}}

<u>»</u><u> </u><u>For</u><u> </u><u>(</u><u>z</u><u> </u><u>+</u><u> </u><u>1</u><u>)</u>

z + 1 = 0 \\ { \underline{z =  - 1}}

Therefore:

{ \boxed{z _{1}  = 5}} \:  \: { \sf{and}} \:  \: { \boxed{z_{2} =  - 1}}

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