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begin mathsize 14px style open parentheses square root of 7 plus square root of 3 close parentheses open parentheses square root of 7 minus square root of 3 close parentheses end style = ....

  1. 2

  2. 4

  3. 10

  4. begin mathsize 14px style square root of 40 end style    

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M. Robo

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah B.

jawaban yang tepat adalah B.   

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Pembahasan

Ingat bahwa Dengan menggunakan sifat perkalian distributif didapatkan Dengan demikian, Jadi, jawaban yang tepat adalah B.

Ingat bahwa begin mathsize 14px style open parentheses square root of a plus square root of b close parentheses open parentheses square root of a minus square root of b close parentheses equals open parentheses square root of a close parentheses squared minus open parentheses square root of b close parentheses squared equals a minus b end style

Dengan menggunakan sifat perkalian distributif didapatkan

table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses square root of size 14px 7 size 14px plus square root of size 14px 3 close parentheses open parentheses square root of size 14px 7 size 14px minus square root of size 14px 3 close parentheses end cell size 14px equals cell open parentheses square root of size 14px 7 close parentheses to the power of size 14px 2 size 14px minus open parentheses square root of size 14px 3 close parentheses to the power of size 14px 2 end cell row cell size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space end cell size 14px equals cell size 14px 7 size 14px minus size 14px 3 end cell row cell size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space end cell size 14px equals size 14px 4 end table   

Dengan demikian, begin mathsize 14px style open parentheses square root of 7 plus square root of 3 close parentheses open parentheses square root of 7 minus square root of 3 close parentheses equals 4 end style 

Jadi, jawaban yang tepat adalah B.   

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