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Simplifying 21x * 21x = 21x Reorder the terms for easier multiplication: 21 * 21x * x = 21x Multiply 21 * 21 441x * x = 21x Multiply x * x 441x2 = 21x Solving 441x2 = 21x Solving for variable 'x'. Reorder the terms: -21x + 441x2 = 21x + -21x Combine like terms: 21x + -21x = 0 -21x + 441x2 = 0 Factor out the Greatest Common Factor (GCF), '21x'. 21x(-1 + 21x) = 0 Ignore the factor 21.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-1 + 21x)' equal to zero and attempt to solve: Simplifying -1 + 21x = 0 Solving -1 + 21x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 21x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 21x = 0 + 1 21x = 0 + 1 Combine like terms: 0 + 1 = 1 21x = 1 Divide each side by '21'. x = 0.04761904762 Simplifying x = 0.04761904762Solution
x = {0, 0.04761904762}
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