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Simplifying (-1x2 + 13x + -40)(-1x2 + 13x + -40) = 0 Reorder the terms: (-40 + 13x + -1x2)(-1x2 + 13x + -40) = 0 Reorder the terms: (-40 + 13x + -1x2)(-40 + 13x + -1x2) = 0 Multiply (-40 + 13x + -1x2) * (-40 + 13x + -1x2) (-40(-40 + 13x + -1x2) + 13x * (-40 + 13x + -1x2) + -1x2 * (-40 + 13x + -1x2)) = 0 ((-40 * -40 + 13x * -40 + -1x2 * -40) + 13x * (-40 + 13x + -1x2) + -1x2 * (-40 + 13x + -1x2)) = 0 ((1600 + -520x + 40x2) + 13x * (-40 + 13x + -1x2) + -1x2 * (-40 + 13x + -1x2)) = 0 (1600 + -520x + 40x2 + (-40 * 13x + 13x * 13x + -1x2 * 13x) + -1x2 * (-40 + 13x + -1x2)) = 0 (1600 + -520x + 40x2 + (-520x + 169x2 + -13x3) + -1x2 * (-40 + 13x + -1x2)) = 0 (1600 + -520x + 40x2 + -520x + 169x2 + -13x3 + (-40 * -1x2 + 13x * -1x2 + -1x2 * -1x2)) = 0 (1600 + -520x + 40x2 + -520x + 169x2 + -13x3 + (40x2 + -13x3 + 1x4)) = 0 Reorder the terms: (1600 + -520x + -520x + 40x2 + 169x2 + 40x2 + -13x3 + -13x3 + 1x4) = 0 Combine like terms: -520x + -520x = -1040x (1600 + -1040x + 40x2 + 169x2 + 40x2 + -13x3 + -13x3 + 1x4) = 0 Combine like terms: 40x2 + 169x2 = 209x2 (1600 + -1040x + 209x2 + 40x2 + -13x3 + -13x3 + 1x4) = 0 Combine like terms: 209x2 + 40x2 = 249x2 (1600 + -1040x + 249x2 + -13x3 + -13x3 + 1x4) = 0 Combine like terms: -13x3 + -13x3 = -26x3 (1600 + -1040x + 249x2 + -26x3 + 1x4) = 0 Solving 1600 + -1040x + 249x2 + -26x3 + 1x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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