Mathematics · Matrices
If A and B are square matrices of the same order, then (A + B)(A - B) is equal to:
- 1A2 - BA + B2 + AB
- 2A2 - B2 + BA - AB✓
- 3A2 - BA - AB - B2
- 4A2 - B2
Correct answer
A2 - B2 + BA - AB
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