Question

3a+5b+2c, -3c +2b-a and 7b -9c +a​

Answer 1

Answer:

=55

Step-by-step explanation:

Answer 2

Step-by-step explanation:

(4a+b+2c)

(4a+b+2c) 2

(4a+b+2c) 2

(4a+b+2c) 2 Using (a+b+c)

(4a+b+2c) 2 Using (a+b+c) 2

(4a+b+2c) 2 Using (a+b+c) 2 =a

(4a+b+2c) 2 Using (a+b+c) 2 =a 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a)

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c)

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a 2 +b

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a 2 +b 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a 2 +b 2 +4c

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a 2 +b 2 +4c 2

(4a+b+2c) 2 Using (a+b+c) 2 =a 2 +b 2 +c 2 +2ab+2bc+2ac=(4a) 2 +b 2 +(2c) 2 +2×4a×b+2×b×2c+2×4a×2c=16a 2 +b 2 +4c 2 +8ab+4bc+16ac