Mathematics
SamathaVenturella641
2015-11-12 22:25:12
posting a screenshot of it. please help!!!
ANSWERS
sashaelliot
2015-11-13 00:39:50

x^2 - 14x + 42 = 0 x^2 - 14x = -42 x^2 - 14x + 49 = -42 + 49 (x - 7)^2 = 7 <====  x - 7 = (+-) sqrt 7 x = 7 (+-) 2.65 x = 7 + 2.65 = 9.65 <== solution x = 7 - 2.65 = 4.35 <== solution

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