slove the question:x2+y2=41,x2-y2=9
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Answer:
x=5, y=4
Step-by-step explanation:
X2+y2=41
X2=41-y2
substitute in 2nd equation
41-y2-y2=9
2×y2=41-9
y2=16
y=+-4
hence x=+-5
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