Photo math is very helpful with those type of problems

I think this is the answer good luck
W=2L-5
-------------
A=L*W
=L(2L-5)
=2L²-5L
-------------
dA/dL=4L-5
When dA/dL=0,
4L-5=0
4L=5
L=5/4
----------------
When L=5/4
A=5/4*(2*(5/4)-5)
=5/4*(10/4-20/4)
=5/4*((-10)/4)
=5/4*(-5/2)
=-25/8
--------------------------------
*You may have been given a badly written out question. The answer doesn't make sense.
Answer:
2x+10=x and 2x=14 this is what I got
Step-by-step explanation:
+