Сократите дробь:a) b2-25     b+5б) 2m-3    4m2-9в)t2-36   6+tг) 5k-2l  25k2-4l2

b²-25/b+5=(b-5)(b+5)/b+5=b-5b) 2m-3/4m²-9=2m-3/(2m-3)(2m+3)=1/2m+3t²-36/6+t=(t-6)(t+6)/6+t= -(t-6)5k-2l/25k²-4l²=5k-2l/(5k-2l)(5k+2l)=1/5k+2l/- дробь

а) [latex] frac{b^2-25}{b+5}= frac{(b-5)(b+5)}{b+5}=b-5 [/latex]б) [latex] frac{2m-3}{4m^2-9}= frac{2m-3}{(2m-3)(2m+3)}= frac{1}{2m+3} [/latex]в) [latex] frac{t^2-36}{6+t}= frac{(t-6)(t+6)}{t+6}=t-6 [/latex]г) [latex] frac{5k-2l}{25k^2-4l^2}= frac{5k-2l}{(5k-2l)(5k+2l)}= frac{1}{5k+2l} [/latex]