=5,8 . (2,6+2,9)+4,8.(5,8-10,3)
=5,8 . 5,5 + 4,8 . -4,5
5.8 x 2.6 + 5.8 x 2.9 + 5.8 x 4.8 - 10.3 x 4.8
= ( 5.8 x 2.6 + 5.8 x 2.9 + 5.8 x 4.8 ) - 10.3 x 4.8
= 5.8 x ( 2.6 + 2.9 + 4.8 ) - 10.3 x 4.8
= 5.8 x 10.3 - 10.3 x 4.8
= 10.3 x ( 5.8 - 4.8 )
= 10.3 x 1 = 10.3
\(5,8\times2,6+5,8\times2,9+5,8\times4,8-10,3\times4,8\)
\(=5,8\times\left(2,6+2,9+4,8\right)-10,3\times4,8\)
\(=5,8\times36,192-49,44\)
\(=2099,136-49,44\)
\(=160,4736\)
p/s nha bn
5,8×2,6+5,8×2,9+5,8×4,8-10,3×4,8
=5,8×(2,6+2,9+4,8)-10,3×4,8
=5,8×10,3-10,3×4,8
=10,3×(5,8-4,8)
=10,3×1=10,3