September 20, 1989 (vol. 100, iss. 10) • Page Image 18
…Finding polynomial roots. Find the roots of 25x2 + 12x + 1.69 = 0. To find second-order polynomial roots, press 2nd [POLY]. Press 2. Respond to the displayed prompts to enter the coefficients. Press 25 ENTER Press 12 ENTER Press 1.69 ENTER To view the results without reviewing the coefficients, press ALPHA N. To view the next result, press ENTER . Solving a real system of simultaneous equations. The TI-68 can rapidly determine the solutions to...…