how here the + sing came ???don't spam otherwise I will report
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2
Answer:
- bc ( c^2 - a^2 - b^2)
reaaranging the brackets
-bc( -a^2 - b^2 + c^2)
-bc × (-a^2)
thatshow plus sign come
Answered by
2
Answer:
=bc(c^2-a^2-b^2)
=bc(-a^2-b^2+c^2)
=bc(ac^2)
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