\(\sqrt{2x+1}-\sqrt{5-x}+x-6=0\)

\(\Leftrightarrow\left(\sqrt{2x+1}-3\right)+\left(1-\sqrt{5-x}\right)+x-4=0\)

\(\Leftrightarrow\frac{2\left(x-4\right)}{\sqrt{2x+1}+3}+\frac{x-4}{\sqrt{5-x}+1}+x-4=0\)

\(\Leftrightarrow\left(x-4\right)\left(\frac{2}{\sqrt{2x+1}+3}+\frac{1}{\sqrt{5-x}+1}+1\right)=0\)

\(\Leftrightarrow x=4\)

1 + 3 x 0 x 0 x 0 x 0 = 1

Bạn đặt lại mk đi, sẽ ko bị hack nữa đâu.

~ Hok tốt ~

\(1+3\times0\times0\times0\times0\)

\(=1+3\times0\)

\(=1+0\)

\(=1\)

bằng 2

= 2

#Hok tốt

 tham khảo link sau 

https:// 

link j

câu trả lời tại đây

https://olm.vn/hoi-dap/tim-kiem?q=Cho+tam+gi%C3%A1c+ABC+c%C3%B3+G+l%C3%A0+tr%E1%BB%8Dng+t%C3%A2m.+Qua+G+v%E1%BA%BD+%C4%91%C6%B0%E1%BB%9Dng+th%E1%BA%B3ng+d+c%E1%BA%AFt+hai+c%E1%BA%A1nh+AB+v%C3%A0+AC+t%E1%BA%A1i+D+v%C3%A0+E.+Ch%E1%BB%A9ng+minh:+AB/AD=AC/AE=3&id=516183

2 đoán mò

1+1=2

1 với 1 là 2

2 thêm 2 là 4

4 với 1 là 5

5 ngón tay sạch đều

hãy nhớ câu hát này là mẹo đấy !!!

\(\frac{1}{3}y+\frac{2}{5}\left(y+1\right)=0\)

\(\frac{1}{3}y+\frac{2}{5}y+\frac{2}{5}=0\)

\(y\left(\frac{1}{3}+\frac{2}{5}\right)=-\frac{2}{5}\)

\(y\left(\frac{1.5+2.3}{15}\right)=\frac{-2}{5}\)

\(\frac{11}{15}y=\frac{-2}{5}\)

\(y=\frac{-2}{5}\div\frac{11}{15}\)

\(y=\frac{-2}{5}.\frac{15}{11}\)

\(y=\frac{-6}{11}\)

\(\frac{-15}{12}y+\frac{3}{7}=\frac{6}{5}y-\frac{1}{2}\)

\(\frac{6}{5}y-\frac{1}{2}=\frac{-15}{12}y+\frac{3}{7}\)

\(\frac{1}{2}=\frac{6}{5}y+\frac{15}{12}y+\frac{3}{7}\)

\(\frac{1}{2}-\frac{3}{7}=\frac{6}{5}y+\frac{15}{12}y\)

\(\frac{1}{14}=y\left(\frac{6}{5}+\frac{15}{12}\right)\)

\(\frac{1}{14}=\frac{49}{20}y\)

\(y=\frac{1}{14}\div\frac{49}{20}\)

\(y=\frac{10}{343}\)