Question

if x+y=12 then xy=14

Answer 1

Answer:

x$^{2}$+y$^{2}$=116

Step-by-step explanation:

given,

x+y=12

xy=14

so,........

(x+y)$^{2}$=(12)$^{2}$

x$^{2}$+y$^{2}$+2xy=144

x$^{2}$+y$^{2}$+28=144

x$^{2}$+y$^{2}$=144-28

x$^{2}$+y$^{2}$=116