(0, 58³- 0,58×0, 42²) × 1(целая) 21\29 двадцать одна двадцать девятая вычислите, пожалуйста, с решением
(0,58^3-0.58*042^2)* 1 21/29= ( (29/50)^3 - (29/50) * (21/50)^2 ) * (50/29)= ( (29^3/50^3) - 29/50*(21^2/50^2) ) * (50/29)= ( (29^3/50^3) - ( (29*21^2) /50^3) ) * (50/29)= ( (29^3-29*21^2)/ 50^3 ) * (50/29)= ( 29(29^2-21^2) / 50^3 ) *(50/29)= ( 29 (29-21)*(29+21) ) /50^3 ) *(50/29)= ( (29*8*50)/50^3 ) * (50/29) = ( (29*2^3) / 50^2 ) * (50/29) = ( (29*2^3) / (25*2^2 ) ) *(50/29) = ( ( 29*2) / 25^2 ) *(50/29)= ( 58/ 25^2 )* (50/29) = (2/ 25^2)* 50= (2/25^2)*2*5^2= (2/5^2)*2= (2/25) *2 = 4/25= 0.16