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I really need help
Its going to be good if you help me using the drawing
it is this (a+b)(a-b) hope you know what is this?
yes
say me what is that?
Division
You get the sqrt then divide
oh no :)
Thats what i thought it was
i didnt understand but i ll tell from begning: (a+b)(a-b)=a^2-b^2
(√2+√5)(√2-√5)=(2-5)=-3
do you know this if you dont know learn this it is one of the main wall of your algebra house
I understand, Its just i forget
ok write it on your paper i ll continue telling write this ((a+b)(a-b)=a^2-b^2)
Ok
i ll wait 3 seconds till you write
lol, Ok
now how we will solve your equation? i ll tell this
Ok, done
I feel like an idiot right now lol
I'm a bad student
look each question has a type when you start to see same type again and again you will remmber how to solve so dont be scared when you see what i told because you will use it al lot that you will start to do withouth thinking. so just memorize now
be bad student but dont be the dumb student
now in the questions typed a+b/a-b or a-b/a+b what you do 99% is this
multpyle both nominator and denominator with the opposite form of denominator now what is opposite form of denominator? i ll tell this
Don't forget its sqrt a+sqrtb/sqrta-sqrtb
yes no problem same thing
what you do 99 percent is this: if it is a+b/a-b if you multply both denominator and nominator by a+b(that is opposite of a-b ) (how you find opposite is this when there is 2 thing like a and b change ONE of them sing and that is the opposite)
is the answer -7/3 - 2√10/3?
so if it is a+b/c-d now say me what is the opposite? opposite is this you look the down side of equation there is c-d now you will change one of their sing lets change sign of d and put it +d it will be c+d so opposite of c-d is c+d
I'm so totally confused
now your question
wait be calm forget the question then pay me attention only
there is a+b/x-y what you will do is the find the opposite of this equation firslty
where you will look is this down side of equation i mean (x-y) so now there is no importance of a+b forget a+b there is ONLY x-y
now there is you have +x and -y now change one of them sign you can put -x and - y (i changed the sing of x) OR you can put x+y (i changed the sing of y)
*sign
so x+y or -x-y is opposite of a+b/x-y do you udnerstand this part?
Yes, but the thing is you havent helped me with my question
wait i ll tell there can you be calm?
you re like that you dont know what is brick and you re trying to build a palace can you do?
huh, I am impatient i guess
just pay attention in me i ll take your most 3 minute and i ll theach you a thing you will use in rest of math
now what we do by finding opposite of a thing?
we can simplify 99 percent of questions by this opposite(in truth there is nothing like opposite i create this word from my mind to theach easier)
Multpyle both nominator and denominator by it
yes when you multply both nominator and denominator by it you will have a good perfect beautiful equation
now multpy your question by opposite of it i ll draw for you wait 10 second you try to do on paper and see which point you re same with me whcih you re difrent
huh, I'll pass.
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