x^2 + 2x- 5 = 75
Question
Updated 10/29/2014 9:50:11 PM
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User: x^2 + 2x- 5 = 75

Weegy: x2+2x-5 x2+2x = 75 + 5 x2+2x = 80 x2/2 + 1 = 40 x2 + 1 = 40 / 2 x2 = 20 - 1 x2 = 19 x = 4.36

Question
Updated 10/29/2014 9:50:11 PM
This conversation has been flagged as incorrect.
Flagged by alfred123 [10/29/2014 9:50:11 PM]
Rating
8
x^2 + 2x - 5 = 75

x^2 + 2x - 80 = 0;

(x - 8)(x + 10) = 0;

x - 8 = 0; x = 8;
x + 10 = 0; x = -10;

x = {8, -10}

38,446,503
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