If x 2 + 2xy + y 2 = 81, x + y = A. 7 B.
Question:
If x2 + 2xy + y2 = 81, x + y =
A. 7
B. 8
C. 9
D. 10
E. 11
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C x 2xy y 81 Factor ...View the full answer
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Related Book For
McGraw Hills Conquering SAT Math
ISBN: 9780071493413
2nd Edition
Authors: Robert Postman, Ryan Postman
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