Simplify each of the following: (i) x2−3x+5−12(3x2−5x+7)(ii) [5−3x+2y−(2x−y)]−(3x−7y+9)(iii) 112x2y−94xy2+14xy−114y2x+115yx2+12xy(iv) (13y2−47y+11)−(17y−3+2y2)−(27y−23y2+2)(v) −12a2b2c+13ab2c−14abc2−15cb2a2+16cb2a−17c2ab+18ca2b.

Simplify each of the following: (i) x2−3x+5−12(3x2−5x+7)(ii) [5�

1.	Simplify each of the following: (i) x2−3x+5−12(3x2−5x+7)(ii) [5−3x+2y−(2x−y)]−(3x−7y+9)(iii) 112x2y−94xy2+14xy−114y2x+115yx2+12xy(iv) (13y2−47y+11)−(17y−3+2y2)−(27y−23y2+2)(v) −12a2b2c+13ab2c−14abc2−15cb2a2+16cb2a−17c2ab+18ca2b.
Answer» Simplify each of the following: $(i) x^{2} - 3 x + 5 - \frac{1}{2} (3 x^{2} - 5 x + 7) (i i) [5 - 3 x + 2 y - (2 x - y)] - (3 x - 7 y + 9) (i i i) \frac{11}{2} x^{2} y - \frac{9}{4} x y^{2} + \frac{1}{4} x y - \frac{1}{14} y^{2} x + \frac{1}{15} y x^{2} + \frac{1}{2} x y (i v) (\frac{1}{3} y^{2} - \frac{4}{7} y + 11) - (\frac{1}{7} y - 3 + 2 y^{2}) - (\frac{2}{7} y - \frac{2}{3} y^{2} + 2) (v) - \frac{1}{2} a^{2} b^{2} c + \frac{1}{3} a b^{2} c - \frac{1}{4} a b c^{2} - \frac{1}{5} c b^{2} a^{2} + \frac{1}{6} c b^{2} a - \frac{1}{7} c^{2} a b + \frac{1}{8} c a^{2} b .$