I'll give it a shot.
(1)(1+2+4+8…) =
(2-1)(1+2+4+8…)
True because of PEMDAS.
= (2)(1+2+4+8…)-(1)(1+2+4+8…)
True because of the distributive property.
= (2+4+8+16…)-(1+2+4+8…) =
(2+4+8+16…)+(-1 + -2 + -4 + -8…)
True because subtraction is adding a negative number by definition.
= (-1 + 2 + -2 + 4 + -4…)
True because of communitive property.
= -1
True because every number is canceled out except for -1. Even though one set may immediately appear to have another number the the second doesn't, it doesn't matter. Each set has infinity size, thus all numbers are canceled out, with the exception of -1.
You are getting infinity larger, not canceling numbers out. The answer to the equation is infinity. (2-1) + (4-2) + (8-4) + (16-8) +..... [The correct usage of the communitive property in this instance].
Because you are adding the (2-1), you are in fact doing the exercise 2A - A + 2B - B + 2C - C + 2D - D ... when utilizing the generic form of the equation, it is obvious that the numbers do not cancel out, but instead you are adding A + B + C +D
[2-1] [ A+ B + C +D]
[1] [A + B +C +D...]
I really find it preposterous that people are actually thinking that adding up an infinite series of POSITIVE integers somehow produces a negative number after some hand waving. This would be equal to saying 2 + 2 = -4.
While you could argue that it is -1 due to both quantities approaching infinity [2 Quantities going to +infinity and I am actually trying to sound as if it is logical for them to somehow appear at -1], the rate at which they approach infinity is different, and because infinity is not actually a number it can not be held as an "ultimate equalizer." In fact, the item must be evaluated forever, which would show that it is in fact approaching infinity because by pairing the terms as they appear you would get [2-1] + [4 -2] + [8-4] considering that you evaluate the function at n intervals at an indefinite amount of intervals, this process would be repeater forever, but the pattern of positively adding the numbers would still hold true.
I'd actually like to clarify that at the best case the equation would = Infinity - Infinity, which is definitely not -1. Infinity is not a concrete number, it is a concept.