If a= 5 and b= 3 then a- b= 2 and a+ b= 8. (a- b)(a+ b)= 2(8)= 16 while (a- b)^2= 4. Now, what is a^2- b^2?
It's not actually a problem related to a question, it's a doubt that has been nagging my mind since yesterday ^^
So, why is
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Can't it be that
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?
And yes, when expanding
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and when expanding
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Can't ?
Hello, Lexadis!
You're making silly errors . . .
Why is .
Can't it be that: . . No!
When expanding
. .
. . .
. .
. .
You managed to come up with the correct result
. . after making two errors.
When expanding
. . . . . . . . If this is true,
. .
. .
. .
. .
. . . . . . . . then this is true.
That was a waste of time . . .
You began with an equation which may or may not be true.
You expanded the right hand side.
Then you factored the right hand side.
And you returned to the equation which may or may not be true.
I can do that, too.
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. .
. .
. .
. .
Do you realize what you said?
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. . . . . . . .