Question

X+Y=10 and XY=21, find 2(X^2+Y^2
)​

Answer 1

Answer:

116 is Ur answer

plz mark me as the brainliest

Answer 2

Step-by-step explanation:

Given,

x + y = 10

xy = 21

than,

2 ( x² + y²)

2 { ( x + y)² - xy}

= 2 { (10)² - 21}

2 ( 100 - 21)

2 x 79

= 158 answer