Multiply by .

Multiply and .

Expand the denominator using the FOIL method.

Simplify.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate 2/(9- square root of 10)

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# Evaluate 2/(9- square root of 10)

Multiply by .

Multiply and .

Expand the denominator using the FOIL method.

Simplify.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate 2/(9- square root of 10)