Solve the equation by completing the square.x2 + 4x - 7 = 0
A. {-2 - 
, -2 + 
}
B. {2 + 
}
C. {-2 - 1
, -2 + 1
}
D. {-1 - 
, -1 + 
}
Answer: A
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Find the value of y given that the two triangles, ?ABC and ?DEF, are similar.
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and 
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