Find the zeros of y=x² + 6x-4 by completing the square. A. x = 3± √13 B. x = ±3 C. x = 3+√5 D. x= -3± √13

Pavel Vasilev asked Jul 18, 2023

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44 votes

Find the zeros of y=x² + 6x-4 by completing the square.

A. x = 3± √13
B. x = ±3
C. x = 3+√5
D. x= -3± √13

Pavel Vasilev asked Jul 18, 2023

3.1k points

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13 votes

$x^2+6x-4=0\\x^2+6x+9-13=0\\(x+3)^2=13\\x+3=\pm√(13)\\x=-3\pm√(13)$

Neil Fenwick answered Jul 23, 2023

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