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Gelneren [198K]
3 years ago
15

Solve the quadratic equation by completing the square . x ^ 2 + 4x - 3 = 0

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

D

Step-by-step explanation:

x²+4x=3

add 4 both sides

x²+4x+4=7

(x+2)²=7

x=-2±√7

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