Jabarkan dan tuliskan dalam bentuk yang sederhana : a. (3√5-2√6)^2 b. (√8-√2) (√8+2√2)

a, (3√5 - 2√6) (3√5 - 2√6) = 3√5 (3√5) - 3√5 (2√6) - 2√6 (3√5) + 2√6 (2√6)
                                    
                                         = 9 x 5 - 6√5(√6) -6√6(√5) + 4 x 6
                                         = 45 - 12√5√6 + 24
                                         = 69 - 12√5√6
                                         = 69 - 65,84
                                         = 3,16

b. (√8 - √2) (√8 + 2√2)      = √8(√8) + √8(2√2) -√2(√8) +√2(2√2)

                                         = 8 + 2√2(√8) - √2√8 + 2 x 2
                                         = 8 + √2(√8) + 4
                                         = 12 + √2(√8)
                                         = 12 + 3,96
                                         = 15,96