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

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

klimenkov
 one year ago
Best ResponseYou've already chosen the best response.1What is the problem?

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

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

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

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

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

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

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

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

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

jackoo
 one year ago
Best ResponseYou've already chosen the best response.0So I have to square it?

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

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

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

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

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

klimenkov
 one year ago
Best ResponseYou've already chosen the best response.1\(\sqrt{25+4}\neq5\)

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

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