26 × 8 + 4 × 13 - 10 × 26
= 26 x 8 + 2 x ( 2 x 13 ) - 10 x 26
= 26 x 8 + 2 x 26 - 10 x 26
= 26 x ( 8 + 2 - 10 )
= 26 x 0
= 0
\(26\times8+4\times13-10\times26\)
\(=13\times2\times2\times4+4\times13-10\times2\times13\)
\(=13\times4\times4+4\times13-20\times13\)
\(=13\times4\times4+4\times13-4\times5\times13\)
\(=13\times4\times\left(4+1-5\right)\)
\(=13\times4\times0\)
\(=0\)
Chúc bn học tốt !!!
\(26\times8+4\times13-10\times26\)
\(=26\times8+2\times2\times13-10\times26\)
\(=26\times\left(8+2-10\right)\)
\(=26\times0\)
\(=0\)
