Solve and check.
= 
A. x = 49
B. x = - 49
C. x = - 1
D. x = 7
Answer: A
Mathematics
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and 
A. 10
B. 30
C. 
D. 0
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A. 
B. 
C. 
D. 
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Factor the trinomial completely, or state that the trinomial is prime.48x2 + 28xy + 4y2
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