Question

3SR2y^3-5ySR2y+12SR8y^3
solve the radical

Answer 1

go to this www.webmath.com

Answer 2

i cant it wont let me....

Answer 3

hey!! riya u should go to the website i gave!

Answer 4

i cant!! it wont let me

Answer 5

define a radical

Answer 6

and i'll solve it

Answer 7

what is SR is it square root?

Answer 8

probably

Answer 9

yes SR is squaree root

Answer 10

A radical is a root sign. Radicals require an index to define what root it is. With square roots, the two is generally left off. With cube roots (index of three) a 3 is written on top of the left side of the radical.

Answer 11

okay i shall attempt to solve it ;)

Answer 12

btw are you going to do A levels?

Answer 13

i'm doing my AS lol

Answer 14

its Y^3

Answer 15

and please clarify whether the numbers before the SRs are xSR or multiples

Answer 16

\[{{{3}\sqrt{2y^3}} -{{5y}\sqrt{2y}}+{12\sqrt{8y^3}}}\]
\[={{{3}\sqrt{2y^3}} -{{5y}\sqrt{2y}}+{12\sqrt{2^3y^3}}}\]
\[={{{3}\sqrt{2y^3}} -{{5y}\sqrt{2y}}+{24\sqrt{2y^3}}}\]
\[={{{27}\sqrt{2y^3}} -{{5y}\sqrt{2y}}}\]
\[={{{27y}\sqrt{2y}} -{{5y}\sqrt{2y}}}\]
\[={{{22y}\sqrt{2y}} }\]

Answer 17

Thank you Sheg

Answer 18

yes that's it

Answer 19

was about to type in the answer, but oh well :P ....not

Answer 20

what's that for? A-level pure maths?