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Mathematics 8 Online
OpenStudy (anonymous):

/...

OpenStudy (anonymous):

I really need help

OpenStudy (anonymous):

Its going to be good if you help me using the drawing

OpenStudy (anonymous):

it is this (a+b)(a-b) hope you know what is this?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

say me what is that?

OpenStudy (anonymous):

Division

OpenStudy (anonymous):

You get the sqrt then divide

OpenStudy (anonymous):

oh no :)

OpenStudy (anonymous):

Thats what i thought it was

OpenStudy (anonymous):

i didnt understand but i ll tell from begning: (a+b)(a-b)=a^2-b^2

OpenStudy (anonymous):

(√2+√5)(√2-√5)=(2-5)=-3

OpenStudy (anonymous):

do you know this if you dont know learn this it is one of the main wall of your algebra house

OpenStudy (anonymous):

I understand, Its just i forget

OpenStudy (anonymous):

ok write it on your paper i ll continue telling write this ((a+b)(a-b)=a^2-b^2)

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

i ll wait 3 seconds till you write

OpenStudy (anonymous):

lol, Ok

OpenStudy (anonymous):

now how we will solve your equation? i ll tell this

OpenStudy (anonymous):

Ok, done

OpenStudy (anonymous):

I feel like an idiot right now lol

OpenStudy (anonymous):

I'm a bad student

OpenStudy (anonymous):

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

OpenStudy (anonymous):

be bad student but dont be the dumb student

OpenStudy (anonymous):

now in the questions typed a+b/a-b or a-b/a+b what you do 99% is this

OpenStudy (anonymous):

multpyle both nominator and denominator with the opposite form of denominator now what is opposite form of denominator? i ll tell this

OpenStudy (anonymous):

Don't forget its sqrt a+sqrtb/sqrta-sqrtb

OpenStudy (anonymous):

yes no problem same thing

OpenStudy (anonymous):

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)

OpenStudy (anonymous):

is the answer -7/3 - 2√10/3?

OpenStudy (anonymous):

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

OpenStudy (anonymous):

I'm so totally confused

OpenStudy (anonymous):

now your question

OpenStudy (anonymous):

wait be calm forget the question then pay me attention only

OpenStudy (anonymous):

there is a+b/x-y what you will do is the find the opposite of this equation firslty

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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)

OpenStudy (anonymous):

*sign

OpenStudy (anonymous):

so x+y or -x-y is opposite of a+b/x-y do you udnerstand this part?

OpenStudy (anonymous):

Yes, but the thing is you havent helped me with my question

OpenStudy (anonymous):

wait i ll tell there can you be calm?

OpenStudy (anonymous):

you re like that you dont know what is brick and you re trying to build a palace can you do?

OpenStudy (anonymous):

huh, I am impatient i guess

OpenStudy (anonymous):

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

OpenStudy (anonymous):

now what we do by finding opposite of a thing?

OpenStudy (anonymous):

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)

OpenStudy (anonymous):

Multpyle both nominator and denominator by it

OpenStudy (anonymous):

yes when you multply both nominator and denominator by it you will have a good perfect beautiful equation

OpenStudy (anonymous):

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

OpenStudy (anonymous):

huh, I'll pass.

OpenStudy (anonymous):

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