Question

решите 2 или 10 номер

6a1b23f4ffde4e8b53684cbd68e336f1.pdf

Answer 1

2u-4+3u+9+5u^2-30+5u=0

5u^2+10u-25=0

u^2+2u-5=0

u=sqrt(6)-1

 

16^(-5)*64^(-4)/(15^0*4^(-3))=4^(-10)*4^(-12)/4^(-3)=4^(-19)