Answer:
[tex] \displaystyle WY = 24[/tex]
Step-by-step explanation:
refer the attachment
remember that,
the diagonals of Parallelogram bisect each other so WA=AY
thus our equation is
[tex] \displaystyle {x}^{2} - 24 = 2x[/tex]
move left hand side expression to right hand side and change its sign:
[tex] \displaystyle {x}^{2} - 2x - 24 =0[/tex]
rewrite 2x and 4x-6x:
[tex] \displaystyle {x}^{2} + 4x -6x - 24 =0[/tex]
factor out x:
[tex] \displaystyle x ({x}^{} + 4) -6x - 24 =0[/tex]
factor out -6:
[tex] \displaystyle x ({x}^{} + 4) -6(x + 4) =0[/tex]
group:
[tex] \displaystyle ({x}^{} + 4) (x - 6) =0[/tex]
recall that,
When the product of factors equals 0 then at least one factor is 0 so
[tex] \displaystyle \begin{cases} {x}^{} + 4 = 0 \\ x - 6 =0 \end{cases}[/tex]
[tex] \displaystyle \begin{cases} {x}^{} = - 4\\ x =6 \end{cases}[/tex]
since the length cannot be negative negative x isn't available
therefore
[tex] \displaystyle \therefore x = 6[/tex]
since WA and AY are the part of WY we acquire:
[tex] \displaystyle WY = {x}^{2} - 24 + 2x[/tex]
substitute the got value of x:
[tex] \displaystyle WY = {6}^{2} - 24 + 2.6[/tex]
simplify square:
[tex] \displaystyle WY = 36 - 24 + 2.6[/tex]
simplify multiplication:
[tex] \displaystyle WY = 36 - 24 + 12[/tex]
simplify addition:
[tex] \displaystyle WY = 48- 24[/tex]
simplify substraction:
[tex] \displaystyle WY = 24[/tex]
hence,
[tex] \displaystyle WY = 24[/tex]
