Sagot :
Answer:
[tex]length=9.64m\\width=6.64m[/tex]
Solution:
- First, write the given.
[tex]length(l)=x\\width(w)=x-3\\area(A)=64\\\\[/tex]
- Then, substitute to the formula.
[tex]lw=A[/tex]
- Simplify.
[tex]x(x-3)=64\\x^{2} -3x-64=0[/tex]
- Find the value of x.
[tex]x^{2} -3x-64=0\\(x-9.64)(x+6.64)=0\\x_{1}=9.64\\x_{2}=-6.64[/tex]
Hope it Helps!
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