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Dvinal [7]
3 years ago
9

Solve for z: z2 + 7z + 8 = 3z + 5

Mathematics
1 answer:
Vika [28.1K]3 years ago
5 0

Answer:

z=−1 or z=−3

Step-by-step explanation:

Subtract 3z + 5 from both sides

z2+7z+8−(3z+5)=3z+5−(3z+5)

z2+4z+3=0

Factor left side of equation

(z+1)(z+3)=0

Set factors equal to 0

z+1=0 or z+3=0

z=−1 or z=−3

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A comparison of the actual number of people who violate the speed limit to the total number of drivers is an example of a rate

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brainly.com/question/19493296

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