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

all answers to how to be a smart risk taker
whats the integral of 1/X
ted is making three picture frames like the one shown below.what length wood does ted need for all three picture frames?
how do I solve for x in x^2 - 8x + 12 = 0 using factoring?
which channel is the most popular one for the evening news A. WANR B. WWCN C. WCLM D. WKOD
why did president Truman believe that the United States should sign the North Atlantic treaty
72 - (blank) + 20 = 70 what number is the blank
why did texans drive their cattle to towns in the midwest
Divide and express the result in standard form. 8/7-i
How do you say "Some brown spiders"?