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Advanced Math / Nonlinear equations in one variable and systems of equations in two variables Difficulty: Medium

38x2=389

What is the negative solution to the given equation?

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Explanation

The correct answer is -3 . Dividing both sides of the given equation by 38 yields x 2 = 9 . Taking the square root of both sides of this equation yields the solutions x = 3 and x = -3 . Therefore, the negative solution to the given equation is -3 .