Venita is factoring the expression 32 A b minus 8 b She determines the GCF and writes the factored expression as 8 b open paren 4 A minus 0 close paren Which best describes Venita’s error?
Answer
A
She incorrectly determined the GCF.
B
She divided each piece of the expression by different factors.
C
She subtracted the GCF from the second term in the expression instead of dividing.
D
She divided the GCF into the first term in the expression instead of subtracting.
Explanation
The GCF of 32Ab and 8b is 8b. Dividing each term by 8b gives 4A and 1, so the correct factorization is 8b(4A − 1). Venita got 0 for the second term by subtracting the GCF from 8b instead of dividing.
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