Question

a²+4b²+c²/9+4ab-4bc/3-2ca/3​

Answer 1

Answer:

Step-by-step explanation:

a2+4b2+c2-4ab -4bc+ 2ca

= (a-2b+c)^2

because in minus term i.e,-4ab-4bc there is b point common hence it is minus

hope this helps

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Answer 2

Step-by-step explanation:

(a)²+(2b)²-(c/3)²+2×a×2b-2×2b×c/3-2×c/3×a

(a+2b-c/3)²

This answer is in the form (a+b+c)²

I hope this will helpful for you.