Step-by-step explanation:
from (2)
x-y=2
y=x-2 (3)
subs (3) into (1)
x²-2x+(x-2)=8
x²-2x+X-10=0
x²+x-10=0
quadratic formula
x= (-1±√1²-4×1×(-10))/2(1)
X=( -1±√41)/2
X=(-1+√41)/2
=
x=(-1-√41)/2
=
A negative plus a negative equals a negative so it's just -17
Answer:3/6 of the pie to friends
Step-by-step explanation:
Maybe a square that is 4 on every side