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Simplifying ax4 + bx3 + cx2 = 0 Solving ax4 + bx3 + cx2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1bx3' to each side of the equation. ax4 + bx3 + -1bx3 + cx2 = 0 + -1bx3 Combine like terms: bx3 + -1bx3 = 0 ax4 + 0 + cx2 = 0 + -1bx3 ax4 + cx2 = 0 + -1bx3 Remove the zero: ax4 + cx2 = -1bx3 Add '-1cx2' to each side of the equation. ax4 + cx2 + -1cx2 = -1bx3 + -1cx2 Combine like terms: cx2 + -1cx2 = 0 ax4 + 0 = -1bx3 + -1cx2 ax4 = -1bx3 + -1cx2 Divide each side by 'x4'. a = -1bx-1 + -1cx-2 Simplifying a = -1bx-1 + -1cx-2
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