\(\frac{x}{8}-\frac{2}{y}=\frac{3}{4}\)
\(\frac{x}{8}-\frac{3}{4}=\frac{2}{y}\)
\(\frac{x}{8}-\frac{6}{8}=\frac{2}{y}\)
\(\frac{x-6}{8}=\frac{2}{y}\)
\(=>\left(x-6\right)\cdot y=2\cdot8\)
\(\left(x-6\right)\cdot y=16\)
\(=>x-6;y\inƯ\left(16\right)\)
\(Ư\left(16\right)=\left\{-16;-8;-4;-2;-1;1;2;4;8;16\right\}\)
Nếu x - 6 = 1; y = 16 thì x = 7
Nếu x - 6 = 2 ; y = 8 thì x = 8
Nếu x - 6 = 4; y = 4 thì x = 10
Nếu x - 6 = 8 ; y = 2 thì x= 14
Nếu x - 6 = 16 ; y = 1 thì x = 22
Nếu x - 6 = -1; y = -16 thì x = 5
Nếu x - 6 = -2 ; y = -8 thì x = 44
Nếu x - 6 = -4; y = -4 thì x = 2
Nếu x - 6 = -8; y = -2 thì x = -2
Nếu x - 6 = -16; y = -1 thì x = -10
Vậy....
x8 −34 =2y
x8 −68 =2y
x−68 =2y
=>(x−6)·y=2·8
(x−6)·y=16
=>x−6;y∈Ư(16)
Ư(16)={−16;−8;−4;−2;−1;1;2;4;8;16}
Nếu x - 6 = 1; y = 16 thì x = 7
Nếu x - 6 = 2 ; y = 8 thì x = 8
Nếu x - 6 = 4; y = 4 thì x = 10
Nếu x - 6 = 8 ; y = 2 thì x= 14
Nếu x - 6 = 16 ; y = 1 thì x = 22
Nếu x - 6 = -1; y = -16 thì x = 5
Nếu x - 6 = -2 ; y = -8 thì x = 44
Nếu x - 6 = -4; y = -4 thì x = 2
Nếu x - 6 = -8; y = -2 thì x = -2
Nếu x - 6 = -16; y = -1 thì x = -10
25 Y^2 + 6XY + 10 X^2 y^3 = ?
GIUP MK