Answer:
According to the expression written here, it simplifies to [tex]9x^2[/tex]
Or
[tex]x^\frac{4}{3}[/tex]
Step-by-step explanation:
The expression [tex]3\sqrt{x^2}*3\sqrt{x^2}[/tex] simplifies by multiplying like terms 3*3 and [tex]\sqrt{x^2}*\sqrt{x^2}[/tex]. This means it becomes:
[tex]3\sqrt{x^2}*3\sqrt{x^2} = 9 \sqrt{x^4}[/tex]
A square root removes any terms inside which is a perfect square. The perfect square [tex]x^4 = x^2x^2[/tex]. This means the expression [tex]9\sqrt{x^4} =9x^2[/tex]
OR
If the expression is [tex]\sqrt[3]{x^2} *\sqrt[3]{x^2} =\sqrt[3]{x^4}=x^\frac{4}{3}[/tex] since a radical can be written with a fractional exponent.