Question

(3+2√2)(3-2√2) simply​

Answer 1

This expression is in the form of

(a+b)(a-b),

then this is equal to a²-b²

so this is equal to 9-8=1

Answer 2

i have solved it by the identity a^2 - b^2 = (a+b) (a-b)

${3}^{2} - {2 \sqrt{2} }^{2} \\ 9 - 8 \\ 1$