Ask
your own question, for FREE!
Mathematics
39 Online
Show all work. Find the following product: (y-1)^2
Still Need Help?
Join the QuestionCove community and study together with friends!
first write \[(y-1)(y-1)\] then do 4 multiplications
\[\large (y-1)^2\] \[\large (y)(y)+(y)(-1)+(-1)(y)+(-1)(-1)\] \[\large y^2-y-y+1\] \[\large y^2-2y+1\] So \[\large (y-1)^2=y^2-2y+1\]
with a little practice you will see that \[(a+b)^2=a^2+2ab+b^2\] and \[(a-b)^2=a^2+2ab+b^2\]but for now it is probably best to write out all 4 multiplications and combine like terms as jimthompson did
sorry \[(a-b)^2=a^2-2ab+b^2\]
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
forgetmylife:
Only the real understand ud83eudd26ud83cudffdu2642ufe0f I'm tired. Tired of the constancy, the constancy of judgment.
rishavraj:
Just trying to find a friend. We met on openstudy, her nickname on there was something "tarantula".
Subshilava:
Which sentence follows correct grammatical conventions? ) u2022 The crow in that bush squawk loudly at the hawks.
9 hours ago
2 Replies
1 Medal
46 minutes ago
4 Replies
0 Medals
1 day ago
4 Replies
3 Medals