Question

Simplify a(a-b-c) + b(a+b-c) - c(-a+b+c)​

Answer 1

Answer:

a

Step-by-step explanation:

take a-b-c = a and a+b+c = b and the answer will be this or if i am wrong for give me because i am still learning english because i am from japan and i don't know english i use vpn and found this app

Answer 2

Answer:

a ^2 +2ab+2ac+b ^2 −2bc−c ^2

Step-by-step explanation:

1 Expand by distributing terms.

a ^2 + ab+ac+b(a+b−c)−c(−a+b+c)

2 Expand by distributing terms.

a ^2+ab+ac+ba+b ^2 - bc−c(−a+b+c)

3 Expand by distributing terms.

a ^2 +ab+ac+ba+b ^2 −bc−(−ca+cb+c ^2)

4 Remove parentheses.

a ^2 +ab+ac+ba+ b ^2 −bc+ca−cb−c ^2

5 Collect like terms.

a ^2 +(ab+ab)+(ac+ac)+b ^2 +(−bc−bc)−c ^2

6 Simplify.

a ^2 +2ab+2ac+b ^2 −2bc−c ^2