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Simplifying ax2 + 4x + b = 0 Reorder the terms: ax2 + b + 4x = 0 Solving ax2 + b + 4x = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1b' to each side of the equation. ax2 + b + -1b + 4x = 0 + -1b Combine like terms: b + -1b = 0 ax2 + 0 + 4x = 0 + -1b ax2 + 4x = 0 + -1b Remove the zero: ax2 + 4x = -1b Add '-4x' to each side of the equation. ax2 + 4x + -4x = -1b + -4x Combine like terms: 4x + -4x = 0 ax2 + 0 = -1b + -4x ax2 = -1b + -4x Divide each side by 'x2'. a = -1bx-2 + -4x-1 Simplifying a = -1bx-2 + -4x-1
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