Factor completely. Make sure you factor out the GCF first if possible. If prime, so state.x2 - 2xy - 63y2
A. (x - 7y)(x + y)
B. (x - y)(x + 9y)
C. (x + 7y)(x - 9y)
D. (x - 7y)(x + 9y)
Answer: C
Mathematics
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for ? as indicated.Use 
for ?.
A. 10
ft
B. 20
ft
C. 5
ft
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What will be an ideal response?
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