sumaiyafaisalt
sumaiyafaisalt sumaiyafaisalt
  • 03-06-2021
  • Mathematics
contestada

Find xy if x + y=3, x^2 + y^2 = 5

Respuesta :

sk5634943
sk5634943 sk5634943
  • 03-06-2021

Answer:

mark me

Step-by-step explanation:

x+y=3

x=3-y

putting the value of x

in this

x²+y²=5

(3-y) ²+y²=5

9-6y+y²+y²=5

2y²-6y+9-5=0

2y²-6y+4=0

2y²-4y-2y+4=0

2y(y-2)-2(y-2)=0

(2y-2) (y-2) =0

2y-2=0 or y-2=0

y=1 or y=2

so x=2 or 1

so x×y=2×1 or 1×2=2

I HOPE THIS WILL HELP YOU MARK ME BRAINLIEST

Answer Link

Otras preguntas

if a sample of helium occupies 15.9 mL at 0.885 kPa what volume will it occupy at 0.500 kPa
Abby and Josh are making signs for the school picnic. Each marker will make 5 signs. They need to make 30 signs in all. How many markers do they need? 30 ÷ ___
Why did President Hoover tell Americans to tighten their belts and work harder to recover from the Great Depression? A. He wanted to encourage Americans to us
Penn foster exam number 700754rr
Solve solve solve solve
What are some myths you have heard about evolution? Write down at least 1 myth or rumor you have heard before about evolution. Thanks will give brainliest
What are powers of Texas senators?
Answer for all asap please I will give 25 points per person and mark brainiest please
14 + 3n = 14 What is the answer
20 POINTS (Help ASAP) Give equations for 3 different polynomial functions with zeros at -8, 2/3, 5/2.