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Simplifying X2 + 8x + 4 = -21 Reorder the terms: 4 + X2 + 8x = -21 Solving 4 + X2 + 8x = -21 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 + X2 + -4 + 8x = -21 + -4 Reorder the terms: 4 + -4 + X2 + 8x = -21 + -4 Combine like terms: 4 + -4 = 0 0 + X2 + 8x = -21 + -4 X2 + 8x = -21 + -4 Combine like terms: -21 + -4 = -25 X2 + 8x = -25 Add '-8x' to each side of the equation. X2 + 8x + -8x = -25 + -8x Combine like terms: 8x + -8x = 0 X2 + 0 = -25 + -8x X2 = -25 + -8x Simplifying X2 = -25 + -8x Reorder the terms: 25 + X2 + 8x = -25 + -8x + 25 + 8x Reorder the terms: 25 + X2 + 8x = -25 + 25 + -8x + 8x Combine like terms: -25 + 25 = 0 25 + X2 + 8x = 0 + -8x + 8x 25 + X2 + 8x = -8x + 8x Combine like terms: -8x + 8x = 0 25 + X2 + 8x = 0 The solution to this equation could not be determined.
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