bearninja
bearninja bearninja
  • 02-09-2016
  • Mathematics
contestada

What do you times together to get -20 and add together to get 24??

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 04-09-2016
Let the two numbers be x and y
xy = -20 . . . . . (1)
x + y = 24 . . . . .(2)
From (2), x = 24 - y . . . . . (3)
Putting (3) into (1), we have:
(24 - y)y = -20
24y - y^2 = -20
y^2 - 24y - 20 = 0
y = 12 + 2√41 and x = 12 - 2√41
Answer Link

Otras preguntas

Brianna fires a gun horizontally from a height of 500 m and with a muzzle velocity of 240 m/s. How fast does it travel horizontally after one second?
Jim has a total of 12 coins. Some of them are nickels, and the others are quarters. If he had 12 more nickels, then the value of the nickels would be the same a
Help please! My maths unfortunately... Does anyone know how I would answer this? I just simply do not know what 'describe each reflection' means. Erm? The shape
a Pontiac trans-am, initially at rest accelerates at a constant rate of 4.0 m/s squared for six seconds how fast will the car be traveling a T equals six second
A toddler takes off running down the sidewalk at 270 ft/min. One minute later, a worried mother runs after the child at 580 ft/min. After how many minutes will
the distance in degrees east or west of the prime meridian is called a latitude b axis c equator d longitude
Find two consecutive numbers whose sum is 117
What is the LCD of 11/12 and 1/8?
how to round 43 to the nearest ten
solve the equation 4+0.3x=19