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Simplifying 21x2 + -1x + 10 = 0 Reorder the terms: 10 + -1x + 21x2 = 0 Solving 10 + -1x + 21x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 21 the coefficient of the squared term: Divide each side by '21'. 0.4761904762 + -0.04761904762x + x2 = 0 Move the constant term to the right: Add '-0.4761904762' to each side of the equation. 0.4761904762 + -0.04761904762x + -0.4761904762 + x2 = 0 + -0.4761904762 Reorder the terms: 0.4761904762 + -0.4761904762 + -0.04761904762x + x2 = 0 + -0.4761904762 Combine like terms: 0.4761904762 + -0.4761904762 = 0.0000000000 0.0000000000 + -0.04761904762x + x2 = 0 + -0.4761904762 -0.04761904762x + x2 = 0 + -0.4761904762 Combine like terms: 0 + -0.4761904762 = -0.4761904762 -0.04761904762x + x2 = -0.4761904762 The x term is -0.04761904762x. Take half its coefficient (-0.02380952381). Square it (0.0005668934241) and add it to both sides. Add '0.0005668934241' to each side of the equation. -0.04761904762x + 0.0005668934241 + x2 = -0.4761904762 + 0.0005668934241 Reorder the terms: 0.0005668934241 + -0.04761904762x + x2 = -0.4761904762 + 0.0005668934241 Combine like terms: -0.4761904762 + 0.0005668934241 = -0.4756235827759 0.0005668934241 + -0.04761904762x + x2 = -0.4756235827759 Factor a perfect square on the left side: (x + -0.02380952381)(x + -0.02380952381) = -0.4756235827759 Can't calculate square root of the right side. The solution to this equation could not be determined.
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