Question

81 power 2.5×9power4.5÷3 power4.8=9power x

Answer 1

81^(2.5) x 9^(4.5)/3^(4.8)=9^x

=>{3^4}^(2.5) x {3^2}^(4.5)/3^(4.8)=9^x

=> 3^(2.5 x 4) x 3^(4.5 x 2)/3^(4.8)=9^x

=> 3^10 x3^9/3^(4.8)=3^2x

=> 3^19/3^(4.8)=3^2x

=> 3^(19-4.8)=3^2x

=> 3^(14.2)=3^2x

=> x=14.2/2=7.1