# Find the Number of Possibilities 2 choose 1

Evaluate using the formula .

Subtract from .

Simplify the numerator.

Expand to .

Multiply by .

Simplify the denominator.

Raise to the power of .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

Simplify the denominator.

Expand to .

One to any power is one.

Divide by .

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