Question 171760
 I need to find the quadractic equation for 5 and 28
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x = 5 or x = 28
x-5 = 0
x -28 = 0
(x-5)*(x-28) = 0
{{{x^2 - 33x + 140 = 0}}}
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Not necessary, but a check:
*[invoke solve_quadratic_equation 1,-33,140]