分解a的2次方+b的2次方+c的2次方+2ab+2bc+2ac

分解a的2次方+b的2次方+c的2次方+2ab+2bc+2ac
分解a的2次方+b的2次方+c的2次方+2ab+2bc+2ac

分解a的2次方+b的2次方+c的2次方+2ab+2bc+2ac
a^2+b^2+c^2+2ab+2bc+2ac
=(a^2+b^2+2ab)+(2ab+2ac)+c^2
=(a+b)^2+2c(a+b)+c^2
=(a+b+c)^2

(a+b+c)(a+b+c)

a的2次方+b的2次方+c的2次方+2ab+2bc+2ac
=(a+b+c)^2

a的2次方+b的2次方+c的2次方+2ab+2bc+2ac
= a的2次方+b的2次方+2ab+c的2次方+2bc+2ac
= (a+b)的2次方 + 2(a+b)c + c的2次方
= (a+b+c)^2

a的2次方+b的2次方+c的2次方+2ab+2bc+2ac
=(a+b+c)^2