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Mama L [17]
3 years ago
5

4z2+8z+4=0 is it soluton or no solution or two real solution

Mathematics
1 answer:
Nutka1998 [239]3 years ago
3 0

Answer:

z = -1

Step-by-step explanation:

Solve for z:

4 z^2 + 8 z + 4 = 0

Divide both sides by 4:

z^2 + 2 z + 1 = 0

Write the left hand side as a square:

(z + 1)^2 = 0

Take the square root of both sides:

z + 1 = 0

Subtract 1 from both sides:

Answer:  z = -1

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