Tentukan hasil perkalian akar akar bilangan berikut :

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A. 2√5 ( √3 + 3√5 )
B. 4√2 ( √24 – √4 )
C. (√5+7 ) ( √5+9 )
D. (2√7-8) (2√7+5)
E. (√6+√5) (2√6-√2)
F. (3√8-√3) (3√5-√2)

Mohon bantuannya besok dikumpulkan 🙂

Tentukan hasil perkalian akar akar bilangan berikut :

a. : 2 sqrt{5} ( sqrt{3} + 3 sqrt{5} ) \ = 2 sqrt{15} + 6 sqrt{25} \ = 2 sqrt{15 } + 30 \ b. : 4 sqrt{2} ( sqrt{24} - sqrt{4} ) \ = 4 sqrt{48} - 4 sqrt{4} \ = 4 times sqrt{16 times 3} - 4 times 2 \ = 16 sqrt{3} - 8 \ c. : ( sqrt{5} + 7)( sqrt{5} + 9) \ = sqrt{25} + 9 sqrt{5} + 7 sqrt{5} + 63 \ = 5 + 16 sqrt{5} + 63 \ = 68 + 16 sqrt{5} \ d. : (2 sqrt{7} - 8)(2 sqrt{7} + 5) \ = 28 + 10 sqrt{7} - 16 sqrt{7} - 40 \ = - 6 sqrt{7} - 12 \ e. : ( sqrt{6} + sqrt{5)}{(2 sqrt{6} - sqrt{2} } ) \ = 12 - sqrt{12 }+ {2 sqrt{30} } - sqrt{10} \ = 12 - 2 sqrt{3} + 2 sqrt{30} - sqrt{10} \ f .: (3 sqrt{8} - sqrt{3)}{(3 sqrt{5} - sqrt{2} } ) \ = 9 sqrt{40 }- {3 sqrt{16} } - 3 sqrt{15} + sqrt{6} \ = 9 times 2 sqrt{10} - 3 times 4 - 3 sqrt{15} + sqrt{6} \ = 18 sqrt{10} - 3 sqrt{15} + sqrt{6} - 12