Question

need help with this question 4^3sqrt135

Answer 1

Is this the question you're asking?
\[
4^3\sqrt{135}
\]

Answer 2

yes i need help i dont understand how to do it

Answer 3

Calculate \(4^3\), then factorize 135.

Answer 4

ok so 4^3 equals 64

Answer 5

and 135 factorized is 3^3 x 5

Answer 6

Do you know that radials (square roots) have the following property?
\[
\sqrt{3^3\times5}=3\sqrt{3\times5}
\]

Answer 7

no i did not know that, this confuses me so much

Answer 8

OK, radicals have the following properties.
\[
\sqrt{xy}=\sqrt{x}\times\sqrt{y}
\]
Similarly, you can have something like this.
\[
\sqrt{x^2y}=\sqrt{x^2}\times\sqrt{y}=x\times\sqrt{y}=x\sqrt{y}
\]