Question

Simplify:(picture) and please show your work so that i can understand how to simplify. thanks

Answer 1

The answer is 100x2 because 20x5= 100 and the power of 2 is alone, so that’s the answer.

Answer 2

√20x *√5x3 - We can involve the action under the square root, because we have a multiplication of two square root elements.

$\sqrt{20x*5x^{3}} = \sqrt{20*5 x^{4} } = \sqrt{100} *x^{2} = 10x^{2}$

We are using the fact, that the multiplication of the square roots is alternating.