Question

Please solve the question below :

Answer 1

Answer:

hey mate here is ur ans

Step-by-step explanation:

(a+b+c)² = a²+b²+c²+2ab+2bc+2ca

a²+b²+c² = (a+b+c)²-2(ab+bc+ca)

= (9)²-2(26)

= 81-52

= 29

hope it help u

Answer 2

a^2+b^2+c^2=(a+b+c)^2-2(ab+bc+ca)

(9)^2-2(26)

81-52

29 this is the answer.