3 years ago

Solve x 2 + 6x - 5 = 0 by completing the square. Which equation is used in the process?

1 answer:

8 0

$x ^2 + 6x - 5 = 0\\\\ x^2+6x+9-14=0\\\\ (x+3)^2=14\\\\ x+3=\sqrt{14} \vee x+3=-\sqrt{14}\\\\ x=-3+\sqrt{14} \vee x=-3-\sqrt{14}$

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