Answer:
Sadie's error is " she made error in step 2 where
"
Because she made error in splitting the powers to simplify the square root
<h3>Therefore the correct answer for Sadie's expression isStep-by-step explanation:
Given that " Sadie simplified the expression StartRoot 54 a Superscript 7 b cubed EndRoot, where a greater-than-or-equal-to 0, "
It can be written as where
The given expression is where
To find Sadie's error and explain the correct answer :
Sadie's steps are
where
where
(by using the identity
(by using the identity
)
Therefore where
Sadie's error is " she made error in step 2 " where
Because she made error in splitting the powers to simplify the square root
<h3>Therefore the correct answer for Sadie's expression is