Question

Square root of 72x^2?

Answer 1

i dont knw how to. explain please?

Answer 2

Do you know what a perfect square is ?

Answer 3

yes, Perfect square is a number that has a rational number as its square root.

Answer 4

\[\sqrt{(72x)^{2}}\] Is this the equation you want to be solved?

Answer 5

If so, \[\sqrt{(72x)^{2}}= 72x\]

Answer 6

Or is it √72x^2 without the parentheses

Answer 7

yes

Answer 8

Then you need to find a factor of 72 that is a perfect square.

Answer 9

In other words, \[\sqrt{72}= 6\sqrt{2}\]
So, \[6\sqrt{2}\approx 8.49\]
Therefore \[\sqrt{72x ^{2}}=8.49x\]

Answer 10

Actually,
\[\sqrt{72x ^{2}}\approx 8.49x\]