Question

Where was Edwards mistake at ?

Answer 1

Answer:

Option A

Step-by-step explanation:

Solution 1

$\sqrt[5]{\sqrt[]{(x+3)^{20} } }$=$\sqrt{(x+3)^20 /5}$= $\sqrt{(x+3)^4}$=(x+3)⁴/²=(x+3)²

Solution 2

$\sqrt[5]{\sqrt[]{(x+3)^{20} } }=$$\sqrt[5]{(x+3)^20/2}$= $\sqrt[5]{(x+3)^10}$= (x+3)¹⁰/⁵= (x+3)²

As you can see the mistake was at first step, where power should have been put as 20/2 instead of 2/20 (according to solution 2 above)

But it wasn't Edward's solution, he went by solution 1 above

There is no connection between Edward's solution and answer options

But best fit is Option A