Where was Edwards mistake at ?

Option A

Step-by-step explanation:

Solution 1

== =(x+3)⁴/²=(x+3)²

Solution 2

= = (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

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: