Question

Simplify: (4+13)(4-13)
$(4 + \sqrt{13)} (4 - \sqrt{13) }$
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Answer 1

Step-by-step explanation:

$(4 + \sqrt{13} )(4 - \sqrt{13)} \\ = {4}^{2} - {( \sqrt{13} )}^{2} \\ = 16 - 13 \\ = 3$