We can observe that the roots of the quadratic equation x 2 - 7x + 10 = 0 are x = 2 and x = 5 in each of the methods. Therefore, the roots of the quadratic equation are x = 2 and x = 5. Solution: To solve this, we just need to graph f(x) = x 2 - 7x + 10 and identify the x-intercepts. Identify the x-intercepts which are nothing but the roots of the quadratic equation.Įxample: Find the roots of the quadratic equation x 2 - 7x + 10 = 0 by graphing.Graph the left side part (the quadratic function) either manually or using the graphing display calculator (GDC). X = 5, x = 2 Finding Roots of Quadratic Equation by Graphing Now, taking the square root on both sides:
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