[quote author=Sirhethat12 post=58260636]

My dear, difference of two squares is applicable only if the numbers are different. not same number as the OP used. you can't use difference of two squares for 10 square minus 10 square [/quote}k

LastMumu:
His calculations was dead on arrival before it even started.: 100-100 is never 10^2 - 10^2 because -100 is NOT equal to -10^2.

-10^2 = +100

That's not where the error is. . .the brackets enclosed the 10 only, excluding the -ve sign.
So -(10)^2 = -100
The error comes up where he struck out (10-10)/(10-10)

That was incorrect because 10-10 is 0

tbabs10166:
if u all understand mathematics; you wouldn't say the op is wrong as he didn't break any mathematical rule as seen frm the solution ....infact u can even manoeuvre your answer to give 10 instead of 2.
In mathematics, whatever u divide by zero is termed 'UNDEFINED' which simply means it's not assigned to any particular value.
In summary 0/0 can give u any value depending on how u manoeuvre your solution without breaking any mathematical rule

From where did you guys import the figure 100 in the first instance

Maths has always been a fraud.

Little wonder i hated it with a passion, i am not a fraudster.

tbabs10166:
difference of two squares can always be used if the numbers are the same

You can't

Cos if they are the same, you ll have to follow the rule of BODMAS. The Bracket comes first

tbabs10166:
it doesn't matter if both variables are equal, you'll still get the same result. from ur equation let's take a= 3 and b = 2. LHS will be equal to RHS. repeat the same thing for a=5 and b=5.

lol, Mathematics laws doesn't contradict one another. If a=b, The use of BODMAS will come into play.

(5²) - (5²) becomes 25-25 and not (5-5)(5+5)

(a+b)^2=a^2+b^2+2ab mathematics is easy let's not kill ourselves

Mathematically, I haven't seen where dude is wrong but I am still skeptical and pretty sure I will catch him.

Still trying to identify where he manoeuvred.

femi4:
lol, Mathematics laws doesn't contradict one another. If a=b, The use of BODMAS will come into play.

(5²) - (5²) becomes 25-25 and not (5-5)(5+5)

it's obvious u don't understand my analysis.....i'm telling you what I knw and not what I think. BODMAS has nothing to do on this context.

LionDeLeo:
Mathematically, I haven't seen where dude is wrong but I am still skeptical and pretty sure I will catch him.

Still trying to identify where he manoeuvred.

I bet u won't...whatever u divide by zero will always be 'UNDEFINED' I can assure that someone else will solve it and come up with a different answer without being wrong.

tbabs10166:
if u all understand mathematics; you wouldn't say the op is wrong as he didn't break any mathematical rule as seen frm the solution ....infact u can even manoeuvre your answer to give 10 instead of 2.
In mathematics, whatever u divide by zero is termed 'UNDEFINED' which simply means it's not assigned to any particular value.
In summary 0/0 can give u any value depending on how u manoeuvre your solution without breaking any mathematical rule

I think this is the only plausible explanation, although I used to attach "infinity" (extremely large ) to the "undefined" whenever a number is divided by zero.

Learnt something today.

And as you have rightly pointed out, it can still be manoeuvred and arrive at a different value.

Well done bro.

tbabs10166:
it's obvious u don't understand my analysis.....i'm telling you what I knw and not what I think. BODMAS has nothing to do on this context.

You can't even defend your claims

femi4:
How come nobody sees the flaw.

Difference of two squares is applicable when the base nos are different

That is X²- Y²= (X+Y) (X-Y)


and not

X²- X²

Every difference of squares problem can be factored as follows: a²– b² = (a + b)(a – b) or (a – b)(a + b) provided that a is not equal to b

Bro, its tge first thing i saw when looking out for the error.

In solving any mathematics problem, whatsoever you arrive as your answer is correct provided you can justify it, and you didn't break any mathematical rule while solving.
In this scenario, the rule of difference of two squares has been flawed. Difference of two squares is applicable if and only if, the two variables involved are distinct.

femi4:
You can't even defend your claims

u complicated it when u brought in BODMAS.

LastMumu:
His calculations was dead on arrival before it even started.: 100-100 is never 10^2 - 10^2 because -100 is NOT equal to -10^2.

-10^2 = +100

your head they there. You caught him red handed

0/0 can also give 1/2 and 1 too.

Not a mathsguy, maybe i should call mathschic to come and solve the problem...

Sirhethat12:


My dear, difference of two squares is applicable only if the numbers are different. not same number as the OP used. you can't use difference of two squares for 10 square minus 10 square

Are you a Ladokite?..