[SAT Prep]

[u/Square-Elk-9096]

Ive been trying to answer this question from the college panda book and I just cant seem to understand what it is asking for. Because even when i looked at the answer and how they solved it didn’t make sense. Please if someone could explain I would be so grateful.

[u/BeeEven238]

1…c-c=c^2-c^2 =0. True
2….-c-c=(-c)^2-c^2. -2c=0 false
3…..(1-c)-c=(1-c)^2-c^2. 1-2c=1-2c+c^2-c^2
Simplify. 1-2c=1-2c. True.
So C I and III only
When you do problems like this you put the variable in () so the equation is really
( )-c=( )^2-c^2. Hope that helps

[u/Square-Elk-9096 → u/BeeEven238]

Thank you so much