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jackoo
 3 years ago
Hey, please help:)
jackoo
 3 years ago
Hey, please help:)

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klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Hint:\[\sqrt[3]{24}=\sqrt[3]{8\cdot3}=\sqrt[3]8\cdot\sqrt[3]{3}\]

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Can you write the answer?

jackoo
 3 years ago
Best ResponseYou've already chosen the best response.0Could you help me with another question?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Solve for \(\sqrt{x+4}\).

jackoo
 3 years ago
Best ResponseYou've already chosen the best response.0couldn't I just do 42 giving me 2 so then I do x+2=13?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Can you solve \(3y2=13\) ?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. Think if \(y=\sqrt{x+4}\).

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1If you make a substitution \(y=\sqrt{x+4}\), you will get \(\sqrt{x+4}=5\). Do you know what \(\sqrt{\phantom{a}}\) sign means?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1What does square root means?

jackoo
 3 years ago
Best ResponseYou've already chosen the best response.0a number multiplied by itself?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Can you tell me what does \(\sqrt{16}\) mean?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. But Also 4 too. 4*(4)=16. So what can you say about \(\sqrt{x+4}=5\) ?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1See the analogy. Try to think. Compute \(\sqrt{36}, \sqrt{25}, \sqrt{\frac14}\).

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1\(\sqrt x\) is the inverse function for \(x^2\). \(\sqrt x\) is a number that squared must be \(x\). \((\sqrt x )^2=x\). Think about last one.

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Compute \(\sqrt{\frac14}\).

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1\(\left(\frac14\right)^2\neq\frac14\). Try again.

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1You have to find \(\sqrt{\frac14}\) using the definition I wrote above.

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. Thats it. Now back to \(\sqrt{x+4}=5\). Can you solve it?

jackoo
 3 years ago
Best ResponseYou've already chosen the best response.0Would I plug something in x?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Ok. Can you solve this: \(\sqrt x = 2\) ?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. Thats it. Now back to \(\sqrt{x+4}=5\). Can you solve it?

klimenkov
 3 years ago
Best ResponseYou've already chosen the best response.1Bingo. You solved this by your own. Congratulations!

jackoo
 3 years ago
Best ResponseYou've already chosen the best response.0It has to be that's why thought of 25 =5
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