A solution to the equation x² - 2x + 8 = 20 to 1 decimal place

[From: ] [author: ] [Date: 12-11-12] [Hit: ]

I need to find a solution to the equation x² - 2x + 8 = 20 correct to 1 decimal place by using trial and improvement.

Please help!

4.6 and
-2.6

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