Question

1. If x+y = 12 and xy = 32. Find the value of xsquare + y square

​

Answer 1

Explanation:

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

$given \: x + y = 12 \: and \: xy = 32$

${12}^{2} = {x}^{2} + {y}^{2} + 2(32)$

$144 - 64 = {x}^{2} + {y}^{2}$

${x}^{2} + {y}^{2} = 80$

Answer 2

Answer:

X+y =12+ xy32

X+y = 12/32

X+y = 3/4