Plug in x into first equation Y=(y+8)^2-3 (y+8)-4 Y=y2+16y+64-3y-24-4 Y=y2+13y+36 Y=(y+9) (y+4) Y =-9,-4 plug in -9 to find x n plug in -4 to find its x X=y+8 X=-9+8 x=-1 Plug in -1 into first equation Y=x2-3x-4 Y=-1^2+3-4 Y =1+3-4 Y=0 (-1,0) do the same for -4 X=y+8 X=-4+8 X=4 Y=x2-3x-4 Y=4^2-12-4 Y=16-16 Y=0 (4,0) Solutions are (-1,0)(4,0)
