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garri49 [273]
3 years ago
5

Simplify this radical. /84

Mathematics
2 answers:
Aliun [14]3 years ago
5 0
\sqrt{84}
\sqrt{4 \times 3 \times 7}
2\sqrt{21}
Stella [2.4K]3 years ago
3 0

Answer:

\sqrt{84}=2\sqrt{21}

Step-by-step explanation:

we need to simplify the radical \sqrt{84}

84 can be written as 2 \cdot 2 \cdot 3 \cdot 7

\sqrt{84}=\sqrt{2 \cdot 2 \cdot 3 \cdot 7}

square root (2*2)= 2

\sqrt{84}=2\sqrt{3 \cdot 7}

\sqrt{84}=2\sqrt{21}

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###

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\boxed{ \sf{  \color{purple}\huge Answer :}}

\:  \:

\large \tt \purple↪  \: \:  \:  \:  \:  5x - 16 = x + 10

\:  \:

\large \tt \purple↪  \: \:  \:  \:  \:5x - x = 10 + 16

\:

\large \tt \purple↪  \: \:  \:  \:  \: 4x = 26

\:

\large \tt \purple↪  \: \:  \:  \:  \: x =   \cancel\frac{26}{4}

\:  \:

\underline{ \boxed{\large  \tt  \purple↪  \red{ \:  \:  \:  \: x =  \frac{13}{2} }}}{ \large✓}

\:  \:

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