Ыкшамдау керек
1) 4( 10p+6 )+3( 0.5p-0.8)
2) 0.15( 5r +8n)+(0.2r+3.2n)×0.2

Упростить:1) 4(10p+6)+3(0.5p-0.8)40p+24+1.5p-2.441.5p+21.62) 0.15(5r+8n)+(0.2r+3.2n)×0.20.75r+1.2n+0.04r+0.64n0.79r+1.84n

1)4*(10p+6)+3*(0,5p-0,8)40р+24+1.5р-2.4=41.5р+21.62)0.15(5r+8n)+(0.2r+3.2n)×0.2= 0.75r+1.2n+0.04r+0.64n=0.79r+1.84n