1.7E: Rational Expressions (Exercises) Last updated Feb 8, 2022 Save as PDF 1.7: Rational Expressions 2: Equations and Inequalities Page ID96237 OpenStaxOpenStax ( \newcommand{\kernel}{\mathrm{null}\,}\) For the following exercises, simplify the expression. 61. x2−x−12x2−8x+16 62. 4y2−254y2−20y+25 63. 2a2−a−32a2−6a−8⋅5a2−19a−410a2−13a−3 64. d−4d2−9⋅d−3d2−16 65. m2+5m+62m2−5m−3÷2m2+3m−94m2−4m−3 66. 4d2−7d−26d2−17d+10÷8d2+6d+16d2+7d−10 67. 10x+6y 68. 12a2+2a+1−3a2−1 69. 1d+2c6c+12ddc 70. 3x−7y2x