Answer:
usually u add up or subtract everything and u get ur x y z answer i might be wrong
Step-by-step explanation:
Answer:
i believe its a square :)
Step-by-step explanation:
Answer:
2x squared +1 (-)x squared -7 is
a.) x squared +8
Step-by-step explanation:
:)
Answer:
Sorry can't see on school computer :(
Step-by-step explanation:
Either 1 or 3 - 1 is all positive and 3 is all negative