Question

(3+√3)(3-√3)find the value
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Answer 1

Answer:

$(3 + \sqrt{3} )(3 - \sqrt{3} ) \\ \\ = identity \: used \: = (x + y)(x - y) \\ = {x}^{2} - {y}^{2} \\ \\ =( {3})^{2} - ({ \sqrt{3} })^{2} \\ \\ = 9 - 3 \\ \\ = 6$