800+800+300+100

=2000

chuc bn hoc gioi

nhae

~~~~~~~~~~~~

800+800+300+100

=1600+400

=2000

mk nhanh nhất k đi

\(800+800+300+100\)

\(=1600+300+100\)

\(=1900+100\)

\(=2000\)

k mk nha

\(\frac{4}{3}B=-1+\frac{3}{4}-\left(\frac{3}{4}\right)^2+...+\left(\frac{3}{4}\right)^{99}\)

\(B=-\frac{3}{4}+\left(\frac{3}{4}\right)^2-\left(\frac{3}{4}\right)^3+...+\left(\frac{3}{4}\right)^{100}\)

\(\Rightarrow\)\(\frac{7}{3}B=-1+\left(\frac{3}{4}\right)^{100}\Rightarrow B=\frac{\left(\frac{3}{4}\right)^{100}-1}{\frac{7}{3}}=\frac{3\left[\left(\frac{3}{4}\right)^{100}-1\right]}{7}\)

Như vầy đủ gọn chưa bạn?

x=700

k nhé

thank

x+100=800

       x=800-100

        x=700

=700.thanks!

100+100 *100=100+10000=10100

Nhớ k mik nha, thanks

=20000

= 100 + 10000

= 10100 nhé bạn

2000

tick cho mk nha bn

2000 nha

x + 100 = 500+ 400

x  +100 =900

x =900-100

x =800

x + 100 = 500+400

x + 100 =900

x = 900 -100

x = 800

x + 100 = 500 + 400

x + 100 = 900

x          = 900 - 100

x          = 800

vậy x = 800

x+100=800

x=800-100

x=700

k nha

ok lun

x= 800-100

x=700

300

k mình nha rùi mk kb

100+200=300

100 + 200 = 300