1) (-4x^2-x)/(x+1) <0 |:(-1)<br>x(4x+1)/(x+1) >0
x ∈ (-1;-1/4) u (0; +∞)
2) 6^(2x+2)=216=6^3
2x+2=3
x=1/2
3) (1/5)^(x-7) <125=5^3<br>5^(7-x)<5^3<br>7-x<3<br>x>4
x∈ (4;+∞)
4)log 3 (35) - log 3 (35/9) = log3 (35) - log 3 (35) +log3 (9) =2
5) log 3 (10) = log 3 (x+1) +log 3 (5)
log 3 (x+1)=log 3 (10)-log 3 (5)=log 3 (10/5)=log 3 (2)
x+1=2
x=1
ОдЗ: x>-1
6) 32^(6/5) -0.7 =2^(5*6/5)-0.7=2^6 -0.7 = 64-0.7 =63.3