I would like to know if I am doing this correctly or incorrectly ( image below )

Question

tvmara · Answer

attachment

KjSaif · Answer

Hmm, Quadratics was one of my weak points lol  @jhonyy9  you seem to be able to do this.  Sorry @tvmara .  Let me know if you any help with science or history I'm real good over there.

jhonyy9 · Answer

so how i see there you need make the differences but in the first case the -3 -(-1) = -3 +1 = -2 not -4

jhonyy9 · Answer

do you see it ? please check it again

@supie - any idea here pls. ? ty

tvmara · Answer

Oh ok thank you

jhonyy9 · Answer

so in case of the second equation you need re calcule these all

jhonyy9 · Answer

the first one is correct 0-1,5 = -1,5 but the second will be -2 - (-1,5) = ?

jhonyy9 · Answer

ok ?

tvmara · Answer

okay I got it now, I'll go and make changes now thank you for the help (:

jhonyy9 · Answer

np

yw

anytime

jhonyy9 · Answer

@supie any idea here pls ? ty

1 attachment