xoabiha xoabiha
  • 28-10-2020
  • Mathematics
contestada

3√5•3√2 =
A. √10
B. 9√10
Which one? ​

Respuesta :

jimthompson5910 jimthompson5910
  • 28-10-2020

Answer: Choice B

Work Shown:

[tex]x = 3\sqrt{5}*3\sqrt{2}\\\\x = (3*3)(\sqrt{5}\sqrt{2})\\\\x = 9\sqrt{5*2}\\\\x = 9\sqrt{10}\\\\[/tex]

The rule used on line 3 is [tex]\sqrt{A}*\sqrt{B} = \sqrt{A*B}[/tex]

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