Question

can someone help me with radicals? please :(

Answer 1

hey

Answer 2

hello @Calle87

Answer 3

question?

Answer 4

its this. @Calle87

Answer 5

okay whats the question

Answer 6

its in the attachment. @christiano123

Answer 7

ok, so i have row d done

Answer 8

\[\sqrt{18}+2\sqrt{75}-\sqrt{48}\]

Answer 9

okay c: @Calle87 thanks.

Answer 10

so with radicals you can simplify each one by splitting them into smaller radicals

Answer 11

\[\sqrt{18}=\sqrt{9}\sqrt{2}=3\sqrt{2}\]

Answer 12

like the square root of 18, is a decimal so you break it down and use a number that equals to 18 like 9x2 and since its still big you can simplify 9x3? @Calle87

Answer 13

\[2\sqrt{75}=2(\sqrt{25})(\sqrt{3})=2(5)\sqrt{3}=10\sqrt{3}\]

Answer 14

ya see what i did?

Answer 15

\[\sqrt{9}\sqrt{2}\]

Answer 16

whats the square root of 9?

Answer 17

3 @Calle87

Answer 18

so 2 cant be simplified but 9 can oh i see

Answer 19

ya they dont want decimals

Answer 20

you want the largest possible square root with the smallest

Answer 21

ie 9 and 2 for 18

Answer 22

aha i just dont understand the last one were it has y @Calle87

Answer 23

ok so the last one,

Answer 24

yea @Calle87 the y's confuse me with the exponents.

Answer 25

\[3(\sqrt{2y})(\sqrt{y^2})\]

Answer 26

\[\sqrt{2y^3}=\sqrt{2y}\sqrt{y^2}\]

Answer 27

see what i did?

Answer 28

and what if there is a number on the outside of the sqrt and one on the inside? do you just bring the outside one down and fin the sqrt of the inside? @Calle87

Answer 29

\[3(\sqrt{2y})(\sqrt{y^2})\]

Answer 30

what is the square root of y^2?

Answer 31

is it y?

Answer 32

yes!! :)

Answer 33

\[3(\sqrt{2y})(y)\]

Answer 34

\[3y \sqrt{2y}\]

Answer 35

first expression is simplified

Answer 36

can you do the 2nd?

Answer 37

oh i get it is the second one A? i think it is c: @Calle87

Answer 38

of the last row

Answer 39

the last one? @Calle87

Answer 40

it is c

Answer 41

the second one is C

Answer 42

the last row is E

Answer 43

fourth row is D

Answer 44

oh i thought it was a because of the 3 and the 4 sqrt

Answer 45

what are you asking?

Answer 46

because i saw the second one say 3y sqrt 4y and i thought it was the first one because it said 3 sqrt 2 because 4's sqrt is 2.

Answer 47

so you are having problems with the second row?

Answer 48

no i got an a c: thanks :D

Answer 49

ok, so no more?

Answer 50

yea no more thanks :D i understand them now c:

Answer 51

cool! great job @ahoymewmew