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Simplifying 7x(3x2) + 4 = 0 Remove parenthesis around (3x2) 7x * 3x2 + 4 = 0 Reorder the terms for easier multiplication: 7 * 3x * x2 + 4 = 0 Multiply 7 * 3 21x * x2 + 4 = 0 Multiply x * x2 21x3 + 4 = 0 Reorder the terms: 4 + 21x3 = 0 Solving 4 + 21x3 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 21x3 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 21x3 = 0 + -4 21x3 = 0 + -4 Combine like terms: 0 + -4 = -4 21x3 = -4 Divide each side by '21'. x3 = -0.1904761905 Simplifying x3 = -0.1904761905 Reorder the terms: 0.1904761905 + x3 = -0.1904761905 + 0.1904761905 Combine like terms: -0.1904761905 + 0.1904761905 = 0.0000000000 0.1904761905 + x3 = 0.0000000000 The solution to this equation could not be determined.
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