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Simplifying (x2 + -6x + -4)(5x2 + -7x + -7) = 0 Reorder the terms: (-4 + -6x + x2)(5x2 + -7x + -7) = 0 Reorder the terms: (-4 + -6x + x2)(-7 + -7x + 5x2) = 0 Multiply (-4 + -6x + x2) * (-7 + -7x + 5x2) (-4(-7 + -7x + 5x2) + -6x * (-7 + -7x + 5x2) + x2(-7 + -7x + 5x2)) = 0 ((-7 * -4 + -7x * -4 + 5x2 * -4) + -6x * (-7 + -7x + 5x2) + x2(-7 + -7x + 5x2)) = 0 ((28 + 28x + -20x2) + -6x * (-7 + -7x + 5x2) + x2(-7 + -7x + 5x2)) = 0 (28 + 28x + -20x2 + (-7 * -6x + -7x * -6x + 5x2 * -6x) + x2(-7 + -7x + 5x2)) = 0 (28 + 28x + -20x2 + (42x + 42x2 + -30x3) + x2(-7 + -7x + 5x2)) = 0 (28 + 28x + -20x2 + 42x + 42x2 + -30x3 + (-7 * x2 + -7x * x2 + 5x2 * x2)) = 0 (28 + 28x + -20x2 + 42x + 42x2 + -30x3 + (-7x2 + -7x3 + 5x4)) = 0 Reorder the terms: (28 + 28x + 42x + -20x2 + 42x2 + -7x2 + -30x3 + -7x3 + 5x4) = 0 Combine like terms: 28x + 42x = 70x (28 + 70x + -20x2 + 42x2 + -7x2 + -30x3 + -7x3 + 5x4) = 0 Combine like terms: -20x2 + 42x2 = 22x2 (28 + 70x + 22x2 + -7x2 + -30x3 + -7x3 + 5x4) = 0 Combine like terms: 22x2 + -7x2 = 15x2 (28 + 70x + 15x2 + -30x3 + -7x3 + 5x4) = 0 Combine like terms: -30x3 + -7x3 = -37x3 (28 + 70x + 15x2 + -37x3 + 5x4) = 0 Solving 28 + 70x + 15x2 + -37x3 + 5x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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