[a+b+c]^2=a^2+b^2+c^2[2ab+2bc+2ca]
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Answered by
1
Answer:
true
Step-by-step explanation:
A
True
Multiply(a+b−c)(a+b−c)
=a
2
+b
2
+c
2
+ab−bc−ca+ab−bc−ca
=a
2
+b
2
+c
2
+2ab−2bc−2ca
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