log(32)0.25=log(2^5)2^(-2)=-2/5*log(2)2=<u>-2/5</u>
---------------------------
<span>14a</span>²<span>b -15ac 10
-------------* ----------- * ---------- =
3с 21b</span>² a
2*7a²b *(-5)*3ac * 10 -100a
= ---------------------------------- = -----------------------
3c*3*7*b²a 3b