Subtract from .

Rewrite as .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Multiply by .

Expand to .

Simplify.

Multiply by .

Multiply by .

Divide by .

Evaluate (15!)/((15-3)!(3!))

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# Evaluate (15!)/((15-3)!(3!))

Subtract from .

Rewrite as .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Multiply by .

Expand to .

Simplify.

Multiply by .

Multiply by .

Divide by .

Evaluate (15!)/((15-3)!(3!))