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Q20. If x + y = 9 and x - y = 5, what is the value of xy?

Mathematics — Algebra — Question 20 of 194

A. 45
B. 14
C. 7
D. 28

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If x + y = 9 and x - y = 5, what is the value of xy? | Mathematics MCQ #20 | Examora | Examora