Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

Multiply by .

Subtract from .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate square root of 10- square root of 90

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# Evaluate square root of 10- square root of 90

Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

Multiply by .

Subtract from .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate square root of 10- square root of 90