Question

cubedroot250+cubedroot54-cubedroot16 ( i hope i wrote that right? @SolomonZelman lol

Answer 1

@MaxwellSmart

Answer 2

Yes, you did:) \(\normalsize\color{blue}{ \sqrt[3]{250}+\sqrt[3]{54}-\sqrt[3]{16} }\)

Answer 3

yes thats it!

Answer 4

Bam!!!!!!

Answer 5

\(\LARGE \sqrt[3]{250} + \sqrt[3]{54} - \sqrt[3]{16} \)

Answer 6

\(\normalsize\color{blue}{ \sqrt[3]{5^3 \times 2}+\sqrt[3]{3^3 \times 2 }-\sqrt[3]{2^3 \times 2} }\)

Answer 7

Almost a sequence :)

Answer 8

sorry guys i dont write it out like that...i dont have the sqrt symbol :(

Answer 9

In order to combine the roots together, they have to be roots of the same number.

Answer 10

Equation editor has it:)

Answer 11

1) Click ALT and Hold it,
2) Click 2 5 1 on the number pad, on the bottom right corner of your keyboard.
3) release ALT.

Answer 12

This √

Answer 13

dont we have to take the cubed root?

Answer 14

Let's do the problem.

Answer 15

okay

Answer 16

\(\normalsize\color{black}{ \sqrt[3]{5^3 \times 2}+\sqrt[3]{3^3 \times 2 }-\sqrt[3]{2^3 \times 2} }\) I broke it down :)

Answer 17

I would almost imagine something like \[\sum_{n=1}^{5}~~\sqrt[3]{2(6-n)^3}\]

Answer 18

dont i break down the 250?

Answer 19

yes 5³ × 2

Answer 20

make the radican the same bu simplifying?

Answer 21

\(\LARGE \sqrt[3]{250} + \sqrt[3]{54} - \sqrt[3]{16} \)

\(\LARGE =\sqrt[3]{125 \times 2} + \sqrt[3]{27 \times 2} - \sqrt[3]{8 \times 2} \)

\(\LARGE =\sqrt[3]{125} \times \sqrt[3]{2} + \sqrt[3]{27} \times \sqrt[3]{2}
- \sqrt[3]{8} \times \sqrt[3]{2} \)

\(\LARGE =5\sqrt[3]{2} + 3 \sqrt[3]{2} - 2\sqrt[3]{2} \)

Now you have the same roots.

Answer 22

Rule: \(\Large\color{black}{ \sqrt[a]{b^a}=\sqrt[\cancel{ a }]{b^\cancel{ a }}=b }\)

Answer 23

oh haha! i see!

Answer 24

thank you @MaxwellSmart and @SolomonZelman

Answer 25

yw

Answer 26

anytime

Answer 27

wait? does it need to be simplified?

Answer 28

factor out whats common @MaxwellSmart

Answer 29

:( sorry

Answer 30

Since the roots are all the same, they are now like terms. Now you can combine them together.

Answer 31

combine what though?

Answer 32

Just like 5a + 3a - 2a = 6a

Answer 33

oh...duh you just showed me that

Answer 34

thanks again!