\"\"

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The expression is \"\".

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Simplify the expression.

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\"\"                                             (Original expression)

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\"\"                             (Multiply and divide with the conjugate \"\")

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\"\"                               (Multiply)

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\"\"                   (Squares of the sum: \"\")

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\"\"                    (Substitute: \"\")

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\"\"                          (Subtract: \"\")

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FOIL method:

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The product of two binomials is the sum of the products of the first terms, the outer terms, the inner terms and the last terms.

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\"\"

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\"\"                  (Multiply)

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\"\"                     (Substitute: \"\")

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\"\"                                      (Add)

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\"\"                                   (Simplify)

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The simplified expression is \"\".

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\"\"

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\"\".