Algebra 1
Solve by completing the square.
1. -x^2 - 5x = -5
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Answers
Answer: The equation can be rewritten as -x^2-5x+5= 0, which is a perfect square trinomial ; the square of a binomial. The equation can be written as (-x-5/2)^2 = 25/4. Thus, the solution is x = -5 ± √25/2, or x = -5 ± 5/2.
