(x^4)^2 how do I simplify this expression?
2 answers:
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Given:
The expression is
The steps are given.
To find:
The mistake in her steps.
Solution:
We have,
The correct steps are shown below.
Step 1: Taking out x as common factor.
Step 2: Now, taking out 2x² as common factor from first two terms (first group of terms) and -1 form last two terms (second group of terms) in the parentheses.
Step 3: Taking out (x+1) as common factor.
She incorrectly factored -1 from the second group of terms.
Therefore, the correct option is B.