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Sagot :
Let two unknow positive number is "x" and "y"
Difference of two positive number is 6 that mean:
[tex]x-y=6[/tex]Their product is 223 less than the sum of their square:
[tex]\begin{gathered} x\times y=x^2+y^2-223 \\ xy=x^2+y^2-223 \end{gathered}[/tex]Substitute x with variable y:
So,
[tex]\begin{gathered} x-y=6 \\ x=6+y \end{gathered}[/tex]Put the value of "x" in another equation:
[tex]\begin{gathered} xy=x^2+y^2-223 \\ (6+y)y=(6+y)^2+y^2-223 \\ 6y+y^2=36+y^2+12y+y^2-223 \\ y^2+6y-187=0 \\ y^2+17y-11y-187=0 \\ y(y+17)-11(y+17)=0 \\ (y+17)(y-11)=0 \\ y=-17;y=11 \end{gathered}[/tex]Given number is positive that mean y=11 and so value of x is:
[tex]\begin{gathered} x=6+y \\ x=6+11 \\ x=17 \end{gathered}[/tex]So the number is 11 and 17.
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