1.

11^(-3)*11^(4*x)=11*121^4

Answer»

Given:11⁴x × 11-³= 11× 121⁴

11⁴x × 11-³= 11× (11²)⁴

11⁴x × 11-³= 11× 11^8

11⁴x=11^9/11-³11⁴x=11^(9+3)11⁴x=11^12since base are equal4x=12x=12/4

=3



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