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

Seasons are celebrations. A year's a Ferris wheel. Both honor our world's habit of spinning 'round a star. 2. In the first line of the poem, the

simplify (c^2 + 2c- 6)(c+5

Find the difference using fraction bars or a paper and pencil. Write your answer in simplest form. 11/12 - 3/4

what is $35 of $175 please

6t^3 * 6t^3 A. 12t^3 B. 12t^6 C. 36t^6 D. 36t^9

Rewrite the fraction in simplest form. 24/36

A scale drawing of a rectangular room has a length of 6 inches and a width of 4 inches. The drawing uses a scale of 1 inch to 3 feet. Find the cost to carpet th

Last month, Rhonda earned $3200. Of that amount, she spent $1350 on rent. What percent of her income went to rent, to the nearest tenth of a percent?

2 - (-6) = -4 4 -8 8

Your self-concept, personality type, and learning styles all affect your _____.