Question 1019537
x²+2x-7568=0
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1st check for an integer solution.
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Find a pair of factors of 7568 that differ by 2:
sqrt(7568) =~ 87
7568 = 86*88
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(x-86)*(x+88) = 0
x = -88, 86
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The hard way:
*[invoke solve_quadratic_equation 1,2,-7568]