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Mathematics 8 Online
OpenStudy (danielbarriosr1):

Help please

OpenStudy (danielbarriosr1):

\[3\sqrt{5c}*7\sqrt{15c^2}\]

OpenStudy (danielbarriosr1):

then \[21\sqrt{75c^3}\]

OpenStudy (anonymous):

are you solving for c? or simplifying?

OpenStudy (danielbarriosr1):

then \[21*5\sqrt{3c ^{3}}\]

OpenStudy (danielbarriosr1):

simplifying

OpenStudy (danielbarriosr1):

Now what am I suppose to do?

ganeshie8 (ganeshie8):

\(\large c^3 =c^2 c\)

ganeshie8 (ganeshie8):

so u can pull out a \(c\) put of squareroot ?

OpenStudy (danielbarriosr1):

so then it would be \[105c \sqrt{3c^2}\]

OpenStudy (danielbarriosr1):

Like that?

ganeshie8 (ganeshie8):

not quite

ganeshie8 (ganeshie8):

\(\large 21*5\sqrt{3c^3}\) \(\large 21*5\sqrt{3c^2c}\) \(\large 21*5*c\sqrt{3c}\) \(\large 105c\sqrt{3c}\)

ganeshie8 (ganeshie8):

when u pull out, c^2 becomes c

OpenStudy (danielbarriosr1):

oh

OpenStudy (danielbarriosr1):

and thats it right?

ganeshie8 (ganeshie8):

yes, \(\large \sqrt{x^2} = x\)

ganeshie8 (ganeshie8):

yup thats it

OpenStudy (danielbarriosr1):

Thank you

ganeshie8 (ganeshie8):

yw

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