Before we can combine any like terms, we need to rationalize the denominators of the terms. At first we can rewrite every radical in the quotient as a quotient of two radicals.
845+320−1051=845+320−1051
Now, we can rationalize the denominators of these quotients. Since there is already a perfect square under the radicand in the denominator of the first term, we will simplify it at once.
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