Question

ucan you find the answer of this give me answer with solved answer

Answer 1

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

(3+√11)(3-√11) = 3^2 - (√11)^2 = 9-11 = -2

Hence the ans is -2

Answer 2

$(3 - \sqrt{11} )(3 + \sqrt{11} ) \\ (3) {}^{2} - ( { \sqrt{11} })^{2} \\ 9 - 11 \\ - 2$