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

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

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

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

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

jackooBest ResponseYou've already chosen the best response.0
couldn't I just do 42 giving me 2 so then I do x+2=13?
 one year ago

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

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

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

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

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

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

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

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

klimenkovBest 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.
 one year ago

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

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

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

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

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

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

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

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

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

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

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