Question

(11) If x = 2 and y = -2 then find the value UI
(iii) If a = 1, b = -2 and c = 3 then find the value of a ² + b2 +c2 + ab + bc + ca.​

Answer 1

Step-by-step explanation:

${a}^{2} + {b}^{2} + {c }^{2} + ab + bc + ca$

1+4+9-2-6+3

14-2-6+3

9