atc1921 atc1921

02-09-2016
Mathematics

contestada

what two numbers multiply to get 30 also add up to get -4????

Respuesta :

nobillionaireNobley nobillionaireNobley

04-09-2016

Let the two numbers be x and y
xy = 30 . . . . . (1)
x + y = -4 . . . . .(2)
From (2), x = -4 - y . . . . . (3)
Putting (3) into (1), we have:
(-4 - y)y = 30
-4y - y^2 = 30
y^2 + 4y + 30 = 0
y = -2 + i√26 and x = -2 - i√26

Answer Link

Otras preguntas

What is characteristic of the strong nuclear force? a. It exists only within electrons. b. It acts over a very small distance. c. It is responsible for most che

the cephalothorax is a fusion of

Xavier worked 10 hours on Monday and 15 hours on Wednesday. His total pay was $280.00. What is his rate per hour? a. $7.50 b. $11.20 c. $18.25 d. $15.00

What caused the Energy Crisis of 1973? a. here was an accident at the Three Mile Island nuclear power station. b. PEC was organized. c. rab nations cut off oil

What does the word part gam mean? a. instrument b. marriage c. many d. together

48 = 3/2y simplify your answer as much as possible

Plants produce carbohydrates for themselves through the process of photosynthesis. Which cycle is carried out when these carbohydrates are passed on along the f

He did not show up for his interview because his brother and _____ were at the beach instead. a. his b. he c. him d. he's

What did East Pakistan change its name to in 1971?

Which observation provides evidence that a cell is most Likely a eukaryote