Question

x+(-31/12)^2=(49/12)^2-x=y^2

tìm x, y

giúp MEOWW vs,cs lời giải đầy đủ nhó

Answer 1

Ta có: \(x+\left(-\dfrac{31}{12}\right)^2=\left(\dfrac{49}{12}\right)^2-x\)

\(\Leftrightarrow x+x=\dfrac{2401}{144}-\dfrac{961}{144}=10\)

hay x=5

\(\Leftrightarrow y^2=\left(\dfrac{49}{12}\right)^2-5=\dfrac{1681}{144}\)

hay \(y=\dfrac{41}{12}\)