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Complete the square, please show work x^2+12x=13
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Complete the square, please show work x^2+12x=13

User Thibaut Mattio
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1 Answer

4 votes

Answer:


x = 1 \: or \: x = - 13

Explanation:


x^2+12x=13 \\ x^2+12x - 13=0 \\ x^2+13x - x - 13=0 \\ x(x + 13) - 1(x + 13) = 0 \\ (x - 1)(x + 13) = 0 \\ x = 1 \: or \: x = - 13

User Jeffrey Sarnoff
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