49 x 51 + 49 x 49 = 49 x ( 51 + 49 )
= 49 x 100
= 4900
49x51+49x49
= 49x(51+49)
= 49x100
= 4900
49 x 51 + 49 x 49
= 49 x (51 + 49)
= 49 x 100
= 4900
\(49\times51+49\times9\)
\(=49\times\left(51+9\right)\)
\(=49\times60\)
\(=2940\)
♥ ☼ ↕ ✿ ⊰ ⊱ ✪ ✣ ✤ ✥ ✦ ✧ ✩ ✫ ✬ ✭ ✯ ✰ ✱ ✲ ✳ ❃ ❂ ❁ ❀ ✿ ✶ ✴ ❄ ❉ ❋ ❖ ⊹⊱✿ ✿⊰⊹ ♧ ✿
to nham ket qua dung la:4900
49x 51 + 49 x49 = 49x (51+49) =49x 100 =4900
\(49\times51+49\times49\)
\(=49\times\left(51+49\right)\)
\(=49\times100\)
\(=4900\)
♥ ☼ ↕ ✿ ⊰ ⊱ ✪ ✣ ✤ ✥ ✦ ✧ ✩ ✫ ✬ ✭ ✯ ✰ ✱ ✲ ✳ ❃ ❂ ❁ ❀ ✿ ✶ ✴ ❄ ❉ ❋ ❖ ⊹⊱✿ ✿⊰⊹ ♧ ✿
\(49x51+49x49\)
\(=49x\left(51+49\right)\)
\(=49x100\)
\(=4900\)
K nha PLEASE
49 x 51 + 49 x 49
= 49 x ( 51 + 49 )
= 49 x 100
= 4900
49 x 51 + 49 x 49
= 49 x [ 51 + 49 ]
= 49 x 100
= 4900
chúc bạn làm bài thật là tốt !
