ineedhelpjuann ineedhelpjuann
  • 25-07-2019
  • Mathematics
contestada

I need help please.

I need help please class=

Respuesta :

jimrgrant1 jimrgrant1
  • 25-07-2019

Answer:

13 - 17[tex]\sqrt{11}[/tex]

Step-by-step explanation:

Using the rule

[tex]\sqrt{a}[/tex] × [tex]\sqrt{a}[/tex] = a

Each term in the second factor is multiplied by each term in the first factor, that is

2[tex]\sqrt{11}[/tex] ([tex]\sqrt{11}[/tex] - 9 ) + 1 ([tex]\sqrt{11}[/tex] - 9 )

Distribute both parenthesis

= (2 × 11) - 18[tex]\sqrt{11}[/tex] + [tex]\sqrt{11}[/tex] - 9

= 22 - 17[tex]\sqrt{11}[/tex] - 9

= 13 - 17[tex]\sqrt{11}[/tex]

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