Mathematics · Algebra
If x 2 = a + b and y 2 = a + c, which of the following is equal to (x 2 - y 2 ) 2 ?
- 1a 2 - 2ac + c 2
- 2b 2 - 2bc + c 2✓
- 34a 2 - 4abc + c 2
- 44a 2 - 2abc + b 2 c 2
Correct answer
b 2 - 2bc + c 2
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