How do you multiply $sqrt(2x^6) *sqrt(6x^4)$ ?

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Answer 1 · 2018-03-13T20:18:34

It is

$sqrt(2x^6)*sqrt(6x^4)=sqrt(12x^10)=2*sqrt3*absx^5$

Answer 2 · 2018-03-13T20:31:32

$sqrt(2*x^6) * sqrt(6*x^4) = 3.464*x^5$

There are 2 basic approaches available.

1st Approach
Do the square roots first.
$sqrt(2*x^6) * sqrt(6*x^4) = (1.414*x^3) * (2.449*x^2)$

$sqrt(2*x^6) * sqrt(6*x^4) = 3.464*x^(3+2) = 3.464*x^5$

2nd Approach
Combine the 2 radicals first.
$sqrt(2*x^6) * sqrt(6*x^4) = sqrt(2*6*x^(6+4)$

$sqrt(2*x^6) * sqrt(6*x^4) = sqrt(12*x^10) = 3.464*x^5$

I hope this helps,
Steve

Answer 3 · 2018-03-13T20:37:44

With any problem involving the multiplication of two square roots you can use the property $sqrtx times sqrty = sqrt(xy)$

Since a square root is equivalent to $x^{1/2}$ we can use the exponential laws for square roots.
$a^xb^x=(ab)^x$ --> $sqrtx times sqrty = sqrt(xy)$

$sqrt(2x^6) times sqrt(6x^4)=sqrt(2x^6 times 6x^4) = sqrt(12x^(10))$

$sqrt(12x^10)$ can be simplified to $x^5 times sqrt(12)$ since $sqrt(x^10) = x^5$

You could also break out a 2 by dividing the inside by 4 (since $sqrt4 =2$ ) giving you $2x^5sqrt3$

How do you multiply sqrt(2x^6) *sqrt(6x^4)sqrt(2x^6) *sqrt(6x^4)?