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Simplifying (x + 3)(2x + -1)(x + -4) = 390 Reorder the terms: (3 + x)(2x + -1)(x + -4) = 390 Reorder the terms: (3 + x)(-1 + 2x)(x + -4) = 390 Reorder the terms: (3 + x)(-1 + 2x)(-4 + x) = 390 Multiply (3 + x) * (-1 + 2x) (3(-1 + 2x) + x(-1 + 2x))(-4 + x) = 390 ((-1 * 3 + 2x * 3) + x(-1 + 2x))(-4 + x) = 390 ((-3 + 6x) + x(-1 + 2x))(-4 + x) = 390 (-3 + 6x + (-1 * x + 2x * x))(-4 + x) = 390 (-3 + 6x + (-1x + 2x2))(-4 + x) = 390 Combine like terms: 6x + -1x = 5x (-3 + 5x + 2x2)(-4 + x) = 390 Multiply (-3 + 5x + 2x2) * (-4 + x) (-3(-4 + x) + 5x * (-4 + x) + 2x2 * (-4 + x)) = 390 ((-4 * -3 + x * -3) + 5x * (-4 + x) + 2x2 * (-4 + x)) = 390 ((12 + -3x) + 5x * (-4 + x) + 2x2 * (-4 + x)) = 390 (12 + -3x + (-4 * 5x + x * 5x) + 2x2 * (-4 + x)) = 390 (12 + -3x + (-20x + 5x2) + 2x2 * (-4 + x)) = 390 (12 + -3x + -20x + 5x2 + (-4 * 2x2 + x * 2x2)) = 390 (12 + -3x + -20x + 5x2 + (-8x2 + 2x3)) = 390 Combine like terms: -3x + -20x = -23x (12 + -23x + 5x2 + -8x2 + 2x3) = 390 Combine like terms: 5x2 + -8x2 = -3x2 (12 + -23x + -3x2 + 2x3) = 390 Solving 12 + -23x + -3x2 + 2x3 = 390 Solving for variable 'x'. Reorder the terms: 12 + -390 + -23x + -3x2 + 2x3 = 390 + -390 Combine like terms: 12 + -390 = -378 -378 + -23x + -3x2 + 2x3 = 390 + -390 Combine like terms: 390 + -390 = 0 -378 + -23x + -3x2 + 2x3 = 0 The solution to this equation could not be determined.
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