Question

4^-4*4^-5/(черта дроби)4^-5
№2 (х+3)^2+(х-7)^2=2х^2

Answer 1

1)...=4^(-4)=1/4^4=1/256 2)x²+6x+9+x²-14x+49=2x² 2x²-2x²-8x+58=0 8x=58 x=7.25