#consider the function

46 messages · Page 1 of 1 (latest)

valid comet
#

At the end it gives me 4 times 0 + 4 which should have gave me 8 but it gives me 4

placid garnetBOT
#
  1. Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
  2. Wait patiently for a helper to come along.
  3. Once someone helps you, say thank you and close the thread with:
    +close
    
  4. Feel free to nominate the person for helper of the week in #helper-nominations
  5. Do not ping the mods, unless someone is breaking the rules.
  6. If you're happy with the help you got here, and the server overall, you can contribute financially as well:
south vector
#

seems like function is f(x) = x²+4 and u nred to show f(-2)+f(2)=4f(0)

valid comet
#

I solved that problem

south vector
#

ohk

#

anything else i can help with?

valid comet
#

Now i have this

#

I was thinking to get rid of parenthesis

south vector
#

log

valid comet
#

On the second one

#

By using

#

(a-b)²= a²-2ab+b²

south vector
#

yeah that works

valid comet
south vector
#

H²-27=H²-6H+9

#

which implies 6H=36

#

H=6

#

@valid comet u get it??

valid comet
#

No, what does H mean?

south vector
#

isnt that the variable

valid comet
#

No

south vector
#

or was it x?

valid comet
#

Wait

#

It's an X

south vector
#

oh

valid comet
#

I'm still in highschool

south vector
#

just assume it to be x.

south vector
#

ig this would help

valid comet
# south vector

I see so you removed the parenthesis from the first one but the second one what formula did you use? To remove the parenthesis?

south vector
#

other one i just used (a-b)²

valid comet
#

Did you keep the sign - that was in front of 3 in formula?

south vector
#

consider the sign in the formula.

valid comet
#

Wait

#

Isn't

#

(a-b)²= a²-2ab+b² ?

south vector
#

ummn u see a²-2ab+b² and a²+b²-2ab are one and the same thing

#

addition of numbers is commutative

south vector
valid comet
#

So the second formula is easier?

south vector