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Simplifying x4 + 4a2 + -21 = 0 Reorder the terms: -21 + 4a2 + x4 = 0 Solving -21 + 4a2 + x4 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 4a2 + 21 + x4 = 0 + 21 Reorder the terms: -21 + 21 + 4a2 + x4 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 4a2 + x4 = 0 + 21 4a2 + x4 = 0 + 21 Combine like terms: 0 + 21 = 21 4a2 + x4 = 21 Add '-1x4' to each side of the equation. 4a2 + x4 + -1x4 = 21 + -1x4 Combine like terms: x4 + -1x4 = 0 4a2 + 0 = 21 + -1x4 4a2 = 21 + -1x4 Divide each side by '4'. a2 = 5.25 + -0.25x4 Simplifying a2 = 5.25 + -0.25x4 Reorder the terms: -5.25 + a2 + 0.25x4 = 5.25 + -0.25x4 + -5.25 + 0.25x4 Reorder the terms: -5.25 + a2 + 0.25x4 = 5.25 + -5.25 + -0.25x4 + 0.25x4 Combine like terms: 5.25 + -5.25 = 0.00 -5.25 + a2 + 0.25x4 = 0.00 + -0.25x4 + 0.25x4 -5.25 + a2 + 0.25x4 = -0.25x4 + 0.25x4 Combine like terms: -0.25x4 + 0.25x4 = 0.00 -5.25 + a2 + 0.25x4 = 0.00 The solution to this equation could not be determined.
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