Factor the expression completely, if possible.100z2 - 49z4
A. z2(10 + 7z)(10 - 7z)
B. z2(10z + 7z2)(10z - 7z2)
C. (10z + 7z2)(10z - 7z2)
D. z2(10 + 7z2)(10 - 7z2)
Answer: A
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