If x + y = 9and XY = 14,4ind X²-y²
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Answered by
2
Answer:
Given, x−y=7 and xy=9
x−y=7
Squaring both sides, we get,
(x−y)
2
=7
2
=>x
2
+y
2
−2xy=49
=>x
2
+y
2
−2(9)=49
=>x
2
+y
2
=49+18
=>x
2
+y
2
=67
Explanation:
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Answered by
0
Answer:
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Explanation:
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