\(\left(x+\frac{1}{5}\right)^2+\frac{17}{25}=\frac{26}{25}\)
\(\Rightarrow\left(x+\frac{1}{5}\right)^2=\frac{26}{25}-\frac{17}{25}\)
\(\Rightarrow\left(x+\frac{1}{5}\right)^2=\frac{9}{25}=\frac{3}{5}^2\)
\(\Rightarrow x^2=\frac{3}{5}^2-\frac{1}{5}^2=\frac{2}{5}^2\)
\(\Rightarrow x=\frac{2}{5}\)
Mk nhanh nhất k mk nka!!!^_^^_^^_^
28) (x+1/5)2 + 17/25=26/25
35) x+2/ 327+ x+3/326+x+4/325+x+5/324+x+349/5=0
(x + 1/5)^2 + 17/25=26/25
\(\left(x+\dfrac{1}{5}\right)^2+\dfrac{17}{25}=\dfrac{26}{25}\)
(x+1/5)^2 + 17/5 = 26/25
(x+1/5)2+17/25=26/25
(x+1/5)2 + 17/25 = 26/25
x = ????
4.24.5^2-(3^3.18+3^3.12)
31.15.7^2.4-31.49.40
1+2+3+4+5+6+7+8+9+10
1+3+5+7+9+11+13+15+19
2+6+10+14+22+23+26+34
5+8+11+14+17+20+23+26+29
1+6+11+16+21+26+31+36+41+47+51
10+13+16+19+22+25+28+31+34+37+40
5+7+9+11+13+15+17+3+8+13+18+23+28
4+7+10+13+16+19+5+9+13+17+21+25
Tìm x
a)17/2 - |2x-3/4|= -7/4
b)(x+1/5)^2+17/25=26/25
\(\left\{x+\frac{1}{5}\right\}^2+\frac{17}{25}=\frac{26}{25}\)
