Answer:
3
6
9
12
15
Step-by-step explanation:
substitute them all and this is what you will get
Answer:
![-2m^2-mn-2m+5n+4n^2](https://tex.z-dn.net/?f=-2m%5E2-mn-2m%2B5n%2B4n%5E2)
Step-by-step explanation:
![-2m(m+n-4)+5(-2m+2n)+n(m+4n-5)\\=-2m^2-2mn+8m-10m+10n+mn+4n^2-5n\\=-2m^2-2mn+mn+8m-10m+10n-5n+4n^2\\=-2m^2-mn-2m+5n+4n^2\\](https://tex.z-dn.net/?f=-2m%28m%2Bn-4%29%2B5%28-2m%2B2n%29%2Bn%28m%2B4n-5%29%5C%5C%3D-2m%5E2-2mn%2B8m-10m%2B10n%2Bmn%2B4n%5E2-5n%5C%5C%3D-2m%5E2-2mn%2Bmn%2B8m-10m%2B10n-5n%2B4n%5E2%5C%5C%3D-2m%5E2-mn-2m%2B5n%2B4n%5E2%5C%5C)
Here is a screen shot of the graph
-2xy-1 not equivalent
16x+14y-1 not equivalent
2x-18x+14y-19 not equivalent
-16x+14y-1. Equivalent and simplified fully
9-16x+14y-10. Equivalent but not simplified fully
2x-18x+14y-1. Equivalent but not simplified fully
All you have to do is to make (6’0) x=6. And y=-8 (0’8) on the graph