Question

УПРОСТИТЕ ВЫРОжЕНИЯ
 1. 4b/ 3(b+3) -4/b+3
2. x/4(x-1) - x/6(x-1) 
3.    2a/3a+3 +5a/6a+6
4.m/4m-4 -m/12m-12
5. 2a/a2-b2 - 2/ a+b
6. c2 +25/c2 -25 -c/c+5 

Answer 1

$frac{4b}{3(b+3)}- frac{4}{b}+3= frac{4b^2-12(b+3)+9b(b+3)}{3b(b+3)}= frac{13b^2-36+15b}{3b(b+3)} \ frac{x}{4(x-1)}- frac{x}{6(x-1)} = frac{3x-2x}{12(x-1)}= frac{x}{12(x-1)}$

$frac{2a}{3a} +3 + frac{5a}{6a}+6= frac{4}{6} + frac{5}{6}+9= frac{9}{6}+9=10.5 \ frac{4m}{4m} -4- frac{m}{12m} -12= 1 - frac{1}{12} -16=-15frac{1}{12}$

$frac{2a}{a^2}-b^2 - frac{2}{a}+b=frac{2}{a}-b^2 - frac{2}{a}+b=b-b^2 \ c^2 + frac{25}{c^2} -25 - frac{c}{c}+5 =c^2 + frac{25}{c^2} -20 - 1= c^2 + frac{25}{c^2} -21= frac{c^4+25-21c^2}{c^2}$