kennathedino kennathedino

02-09-2019
Mathematics

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Can someone explain to me how to do this question? It needs to be simplified and no decimals or fractions.

$Can someone explain to me how to do this question It needs to be simplified and no decimals or fractions class=$

Respuesta :

risheshshukla12 risheshshukla12

02-09-2019

[tex] \sqrt{180} - \sqrt{45 } \\ = \sqrt{2 \times 2 \times 3 \times 3 \times 5} - \sqrt{3 \times 3 \times 5 } \\ [/tex]

Taking common

[tex] \sqrt{3 \times 3 \times 5} ( \sqrt{4} - 1) \\ = 3 \sqrt{5} (2 - 1) \\ = 3 \sqrt{5} [/tex]

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