Answer:
option A is the answer.
Because the sum of two smaller sides of a traingle should be larger then third side. This condition is only fulfilled in option A.
15+25= 40 which is more then 38.
while in other options it's either equal or smaller then third side.
The answer is most likely (c).
-x=-y+2
x=y-2
now substitute iin the first one
y=(y-2)^2+5 (y-2)-3
y=y^2-4y+4 +5y-10-3
y=y^2+y-9
y^2-9=0.
y^2=9
y=3
3-x=2
-x=2-3
-x=-1
x=1
the solution are x=1 and y=3
3=1^2+5 (1)-3
3=1+5-3
3=6-3
3=3
