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Mathematics 8 Online
OpenStudy (ayonnaleflore):

will fan and medal

OpenStudy (ayonnaleflore):

OpenStudy (priyar):

2/0 =?

OpenStudy (ayonnaleflore):

0

OpenStudy (priyar):

no..! |dw:1457886092632:dw| can you do this?

OpenStudy (priyar):

2/0 is meaningless.. denominator can never be zero...!

OpenStudy (ayonnaleflore):

ive never seen that before ...... can you explain it to me

OpenStudy (priyar):

you have never seen that because..this division is impossible..Just remember this: "Denominator can never be zero.."

OpenStudy (priyar):

Do you agree?

OpenStudy (ayonnaleflore):

yes so that means we nees so cancel values out so that nothing is n the bottom??

OpenStudy (priyar):

no.. its more like this: a+2 can never be zero.. right?

OpenStudy (ayonnaleflore):

but it can equal zero right??

OpenStudy (priyar):

which? a?

OpenStudy (ayonnaleflore):

a+2

OpenStudy (priyar):

a+2 can't be equal to zero .. because a+2 is the denominator and denominator can never be zero.. okay?

OpenStudy (ayonnaleflore):

yes so what process is used to solve this problem??

OpenStudy (priyar):

when will a+2 be zero?

OpenStudy (ayonnaleflore):

im not sure

OpenStudy (priyar):

ok..lemme put it this way..: a+2=0 a=?

OpenStudy (priyar):

a=-2..right?

OpenStudy (ayonnaleflore):

yes -2

OpenStudy (priyar):

so is a=-2 then the expression becomes meaningless.. so a not equal to zero... so which option is it? @ayonnaleflore

OpenStudy (ayonnaleflore):

There are no restrictions on the values of variable a.

OpenStudy (priyar):

how?

OpenStudy (priyar):

i have almost given you the answer!!

OpenStudy (ayonnaleflore):

well a doesnt have a value so.....

OpenStudy (priyar):

a not equal to zero-> this is a restriction

OpenStudy (priyar):

okay.. what is the first option in words?

OpenStudy (ayonnaleflore):

a is not equal to -2

OpenStudy (priyar):

yes!! does it match with the condition we have come up with?

OpenStudy (ayonnaleflore):

yes

OpenStudy (priyar):

sorry.. it is a not equal to -2 over there.. it was a typo.! and yes it matches ,so option 1 is the correct answer!

OpenStudy (ayonnaleflore):

ok thank you

OpenStudy (priyar):

np!

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