Wadi25 Wadi25
  • 02-03-2021
  • Mathematics
contestada

Solve the simultaneous equations 3x²+ 2x = y²- y + 50, 2x = y +5.​

Respuesta :

really226
really226 really226
  • 02-03-2021

Answer:

(x,y) = (4,3), (20,35)

Step-by-step explanation:

3x²+ 2x = y²- y + 50

2x = y +5

y=2x-5, sub into 3x²+ 2x = y²- y + 50

[tex]3x^2+2x=(2x-5)^2-(2x-5)+50\\3x^2+2x=4x^2-20x+25-2x+5+50\\0=x^2-24x+80\\x=20 ,4\\[/tex]

sub into y=2x-5

y= 35, 3

Answer Link

Otras preguntas

what is the belief that the king is chosen by god
An internal force that helps create new landforms is a. mechanical weathering. c. volcanism. b. glacial movement. d. wind erosion.
The addition of which of the following sentences would create an effective paragraph? Dogs and cats are both fantastic pets. Dogs are loving and playful. Cats a
lisa is painting a fence that is 26 feet long and 7 feet tall. A gallon of paint will cover 350 square feet. Write and slove a proportion to determine how many
DeLissa wants to dress and act like Marisol, who is a very popular and attractive girl at school. What type of peer pressure is DeLissa reacting to?
what new skill made agriculture possible
If the ratio of the purple flowers to black flowers is 4 to 8 and there are a total of 108 flowers how many of the flowers are purple
How do you round 1945 to the nearest hundred
Which World War II event occurred first? The United States dropped two atomic bombs on Japan. President Harry Truman was sworn in to office.
S= 2( lw + lh + wh) Solve for w Please show your work