СРОЧНО 1 и 2 задания!
1. 3/(5х-30)=1/25 3*25=5х-30 5х=105 х=105/5=21 2.1/2^(4х-14)=1/2^6 4x-14=6 4х=20 х=5
1 корень(3/(5x-30))=1/5 (3/(5x-30))=1/25 5x-30=3*25=75 5x=105 x=21 2 (1/2)^(4x-14)=1/64=(1/2)^(6) (4x-14)=(6) 4x=20 x=5