1.345x0.345x2.69-1.345³-1.345x0.345²
=-1.345x(-0.345x2.69+1.345²+0.345²)
=-1.345x(1.345²-2x1.345x0.345+0.345²)
=-1.345(1.345-0.345)²
=-1.345x1²
=-1.345
1.345x0.345x2.69-1.345³-1.345x0.345²
=-1.345x(-0.345x2.69+1.345²+0.345²)
=-1.345x(1.345²-2x1.345x0.345+0.345²)
=-1.345(1.345-0.345)²
=-1.345x1²
=-1.345