Hi all,
So for this cube of differences:
x^3 - 2^3
Using the formula a^3 - b^3 = (a - b) (a^2 + ab + b^2), the answer should be (x -2) (x^2 + 2x + 2^2)
However, my question is that if i were to strictly follow the formula it would equal (x-2) (x^2 +x2 + 2^2), since a = x and b = 2.
I know we don't write coefficient/variables in such a way, so does that mean this is an exception to the rule of the formula and is this a nuance that I should disregard?
So for this cube of differences:
x^3 - 2^3
Using the formula a^3 - b^3 = (a - b) (a^2 + ab + b^2), the answer should be (x -2) (x^2 + 2x + 2^2)
However, my question is that if i were to strictly follow the formula it would equal (x-2) (x^2 +x2 + 2^2), since a = x and b = 2.
I know we don't write coefficient/variables in such a way, so does that mean this is an exception to the rule of the formula and is this a nuance that I should disregard?
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