Question

Решите уравнения : 1). (2у-3)(3у+1)+2(у-5)(у+5)=2(1-2у)^2+6у
2). (5х-1)^2-16х^2=0
3). (х+3)^2+(х-4)^2=2(4-х)(х+3)

Answer 1

.......................лови