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The equation is .
The standard form of quadratic equation in x - variables is , where .
Graph the related function to the equation .
Observe the graph, the graph intersect to the x - axis at two points. So the equation has two solutions. The graph intersect to the x - axis at points are . So the solutions are .
To check the first solution, the values of substitute in the original equation, .
(solution checks)
To check the first solution, the values of substitute in the original equation, .
(solution checks)
The solutions are .
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