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Simplifying 13x2 + -210X + 400 = 0 Reorder the terms: 400 + -210X + 13x2 = 0 Solving 400 + -210X + 13x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-400' to each side of the equation. 400 + -210X + -400 + 13x2 = 0 + -400 Reorder the terms: 400 + -400 + -210X + 13x2 = 0 + -400 Combine like terms: 400 + -400 = 0 0 + -210X + 13x2 = 0 + -400 -210X + 13x2 = 0 + -400 Combine like terms: 0 + -400 = -400 -210X + 13x2 = -400 Add '-13x2' to each side of the equation. -210X + 13x2 + -13x2 = -400 + -13x2 Combine like terms: 13x2 + -13x2 = 0 -210X + 0 = -400 + -13x2 -210X = -400 + -13x2 Divide each side by '-210'. X = 1.904761905 + 0.0619047619x2 Simplifying X = 1.904761905 + 0.0619047619x2
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