Mathematics · Ratio and Proportion
If (x + y) : (x - y) = 7 : 3, then find the value of (x2 + y2) : (x2 - y2).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 129 : 21✓
- 221 : 29
- 320 : 29
- 410 : 4
Correct answer
29 : 21
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