whay is the formula of (a+b-c)^2
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Answered by
4
Hey there!
It is a arithmetical identity.
( a + b - c) ² = a²+b²+c²+2ab-2bc-2ca .
Hope helped!
It is a arithmetical identity.
( a + b - c) ² = a²+b²+c²+2ab-2bc-2ca .
Hope helped!
Answered by
0
( a+b - c) ^2 = (a) ^2 +(b) ^2 +(-c) ^2 +2(a)(b) + 2(b)(-c) + 2(-c)(a)
= a^2 +b^2 +c^2 +2ab - 2bc - 2ca
= a^2 +b^2 +c^2 +2ab - 2bc - 2ca
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