Question

simplify the following (3+√3) (3-√3)​

Answer 1

Answer:

6

$(3 + \sqrt{3} )(3 - \sqrt{3} ) \\ it \: is \: in \: the \: form \: of \: (x + y)(x - y) = {x}^{2} - {y}^{2} \\ here \: x = 3 \: and \: y = \sqrt{3} \\ (3 + \sqrt{3})(3 + - \sqrt{3}) = {3}^{2} - ({ \sqrt{3} })^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 9 - 3 = 6$