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Simplifying (2x2 + -1x + -8)(7x2 + 9x + 5) = 0 Reorder the terms: (-8 + -1x + 2x2)(7x2 + 9x + 5) = 0 Reorder the terms: (-8 + -1x + 2x2)(5 + 9x + 7x2) = 0 Multiply (-8 + -1x + 2x2) * (5 + 9x + 7x2) (-8(5 + 9x + 7x2) + -1x * (5 + 9x + 7x2) + 2x2 * (5 + 9x + 7x2)) = 0 ((5 * -8 + 9x * -8 + 7x2 * -8) + -1x * (5 + 9x + 7x2) + 2x2 * (5 + 9x + 7x2)) = 0 ((-40 + -72x + -56x2) + -1x * (5 + 9x + 7x2) + 2x2 * (5 + 9x + 7x2)) = 0 (-40 + -72x + -56x2 + (5 * -1x + 9x * -1x + 7x2 * -1x) + 2x2 * (5 + 9x + 7x2)) = 0 (-40 + -72x + -56x2 + (-5x + -9x2 + -7x3) + 2x2 * (5 + 9x + 7x2)) = 0 (-40 + -72x + -56x2 + -5x + -9x2 + -7x3 + (5 * 2x2 + 9x * 2x2 + 7x2 * 2x2)) = 0 (-40 + -72x + -56x2 + -5x + -9x2 + -7x3 + (10x2 + 18x3 + 14x4)) = 0 Reorder the terms: (-40 + -72x + -5x + -56x2 + -9x2 + 10x2 + -7x3 + 18x3 + 14x4) = 0 Combine like terms: -72x + -5x = -77x (-40 + -77x + -56x2 + -9x2 + 10x2 + -7x3 + 18x3 + 14x4) = 0 Combine like terms: -56x2 + -9x2 = -65x2 (-40 + -77x + -65x2 + 10x2 + -7x3 + 18x3 + 14x4) = 0 Combine like terms: -65x2 + 10x2 = -55x2 (-40 + -77x + -55x2 + -7x3 + 18x3 + 14x4) = 0 Combine like terms: -7x3 + 18x3 = 11x3 (-40 + -77x + -55x2 + 11x3 + 14x4) = 0 Solving -40 + -77x + -55x2 + 11x3 + 14x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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