Question

(-a+b+c)^2=? Split according to (a+b+c)^2 formula

Answer 1

Answer:

Step-by-step explanation:

Answer 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