Question

(1) 'a^(2)+c^(2)+2ab-2ac-2bc'​

Answer 1

Step-by-step explanation:

As is noted in other comments and answer, the symmetry is a little illusory because of the signs. This is probably less than you were hoping for, but or any integral choice of B and C, you can find an integer A which makes the expression a perfect square. Just take A=2(B+C), and the expression equates to (B−C)2..

Hope its help..

Answer 2

Answer:

• a2 + b2 + c2 formula is read as a square plus b square plus c square. Its expansion is expressed as a2 + b2 + c2 = (a + b + c)2 - 2(ab + bc + ca).