4-32. High-order Equations from 2nd to 6th DegreeYour calculator can be used to solve high-order equations from 2nd to 6th degree.• Quadratic Equation: ax2 + bx + c = 0 (a 0)• Cubic Equation: ax3 + bx2 + cx + d = 0 (a 0)• Quartic Equation: ax4 + bx3 + cx2 + dx + e = 0 (a 0)…1. From the Main Menu, enter the Equation mode.2. Select the POLY (Polynomial) mode, and specify the degree of the equation.You can specify a degree 2 to 6.3. Sequentially input the coefficients.• The cell that is currently selected for input is highlighted. Each time you input a coefficient,the highlighting shifts in the sequence:a → b → c → …• You can also input fractions and values assigned to variables as coefficients.• You can cancel the value you are inputting for the current coefficient by pressing J atany time before you press w to store the coefficient value. This returns to the coefficientto what it was before you input anything. You can then input another value if you want.• To change the value of a coefficient that you already stored by pressing w, move thecursor to the coefficient you want to edit. Next, input the value you want to change to.• Pressing 3(CLEAR) clears all coefficients to zero.4. Solve the equations.Example To solve the cubic equation (Angle unit = Rad)x3 – 2x2 – x + 2 = 01 m Equation2 2(POLY)2(3)3 bw-cw-bwcw4 1(SOLVE)Multiple Solutions (Example: x3 + 3x2 + 3x + 1 = 0)
