Asked by Sandra

Solve the equation by completing the square. x² – 7x – 4 = 0
• 7.53, –0.53
• –7.53, –0.53
• –7.53, 0.53
• 7.53, 0.53
Answered by Steve
x^2 - 7x - 4
x^2 - 7x + (7/2)^2 - 4 - (7/2)^2
(x - 7/2)^2 - 65/4

y=0 when

x - 7/2 = ±√65/2
x = (7±√65)/2
x = 7.53 or -.53
Answered by HelpMan
The answer is A *
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