Question

( 3 + square root of 3 ) ( 3 - square root of 3 ) plz do sum​

Answer 1

Answer:

Use (a+b)(a-b)=a^2-b^2

$(3 + \sqrt{3} )(3 - \sqrt{3} ) \\ 9 - 3 \\ 6$

Hope helps u

Answer 2

Answer:

$(3 + \sqrt{3} )(3 - \sqrt{3} ) \\ we \: know \: that \: (x + y)(x - y) = {x}^{2} - {y}^{2} \\ = (3 + \sqrt{3} )(3 - \sqrt{3} ) \\ = 9 - 3 = 6 \: \: ans$