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(x - a) + (x - a) + (b) = 2 (x - a) + (b) = x - a + x - a + b = 2x - 2a + b

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Q: What does x-a plus x-a plus b equal?
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How do you find the answer of a number having its power as a fraction?

Suppose you have the expression Xa/b. Xa/b is equal to b√(Xa) that is, the bth root of (X to the power a). Equivalently, it is (b√X)a, that is (the bth root of X), raised to the power a.


Why exponent 0 is equal to 1 to this problem 1x2 exponent 0 is equals 1?

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Any number to the power zero is equal to one. That can be derived from the following index law: xa*xb = xa+b (x not zero) Now let b = 0 so that the above becomes xa*x0 = xa+0 so xa*x0 = xa (since a+0 = a) That is, any number multiplied by x0 is the number itself. That can be true only if x0 is the multiplicative identity, that is, only if x0 = 1.


Why a number to the zero power is always equal to 1?

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Why any number raised to power zero is 1?

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