Question

Помогите пожалуйста!!!!!;

Answer 1

$(4 - \sqrt{3} )(4 + \sqrt{3} ) = {4}^{2} - \sqrt{ {3}^{2} } = {4}^{2} - 3 = 16 - 3 = 13. \\ ( \sqrt{2} + \sqrt{3} )( \sqrt{2} - \sqrt{3)} = \sqrt{ {2}^{2} } - \sqrt{ {3}^{2} } = 2 - 3 = - 1. \\ ( \sqrt{10} + \sqrt{11} )( \sqrt{11} - \sqrt{10} ) = \sqrt{ {11}^{2} } - \sqrt{ {10}^{2} } = 11 - 10 = 1.$

Answer 2

$(4 - \sqrt{3} )( 4 + \sqrt{3} ) = 16 - 3 = 13\\ (\sqrt{2} + \sqrt{3} )( \sqrt{2} - \sqrt{3)} = 2 - 3 = -1$
(√11-√10)(√11+√10)=11-10=1