Question

(-2,1s²+0,5st+0,3t²)-(1,3s²-1,7st-1,8t²) срочно алгебра​

Answer 1

(-2.1s²+0.5st+0.3t²)-(1.3s²-1.7st-1.8t²)=-2.1s²-1.3s²+0.5st+1.7st+0.3t²+1.8t²=3.4t²+2.2st+2.1t²