Question

can someone help???

Answer 1

\[Simplify the radical x = \frac{ -3 \pm \sqrt{45} }{ 6 }\]

Answer 2

how can you simplify \[\Large \sqrt{45}\]

Answer 3

\[3\sqrt{5}\]

Answer 4

good

Answer 5

\[\Large x = \frac{ -3 \pm \sqrt{45} }{ 6 }\]

\[\Large x = \frac{ -3 \pm 3\sqrt{5} }{ 6 }\]

\[\Large x = \frac{ 3(-1 \pm \sqrt{5}) }{ 6 }\]

\[\Large x = \frac{ -1 \pm \sqrt{5} }{ 2 }\]

Answer 6

thank you!

Answer 7

sure thing

Answer 8

@jim_thompson5910
Idk where I went wrong with this one.

\[x = \frac{ 2 \pm \sqrt{84} }{ 8 } = \frac{ 2 \pm 2\sqrt{21} }{ 8 }\]

How would you simplify it from here?

I got \[x = \frac{ 2 \pm \sqrt{21} }{ 4 }\]

Answer 9

\[\Large x = \frac{ 2 \pm \sqrt{84} }{ 8 }\]

\[\Large x = \frac{ 2 \pm 2\sqrt{21} }{ 8 }\]

\[\Large x = \frac{ 2(1 \pm \sqrt{21}) }{ 8 }\]

\[\Large x = \frac{ 1 \pm \sqrt{21} }{ 4 }\]