maddylee13
maddylee13 maddylee13
  • 30-09-2020
  • Mathematics
contestada

What two number multiply to -48 and add to -2?

Respuesta :

tonb
tonb tonb
  • 30-09-2020

Answer:

6 and -8

Step-by-step explanation:

Solve:

xy = 48

x + y = -2

You can say y = -2-x = -(x+2) and then substitute that in the first:

-x(x+2) = 48

-x² -2x - 48 = 0

x² + 2x + 48 = 0

Quadratic formula can do the rest if you don't "see" the factorization.

Answer Link

Otras preguntas

money is shared out between Paul and Helen in the ratio of 3:4 Helen receives £16 How much did Helen receiveNot a history question its maths
What is the area of the triangle shown below? 5 5 8 units2
Hello I need help writing my goal setting
Help..!!♡ Right answers will be marked as brainliest..!♡ Answer all the questions..!​
3. What details does Harper Lee use to create a suspenseful and tense mood during the confrontation in front of the Maycomb jail? Use specific quotes from the t
c^2cos^2 B+ b^2cos^2 C + bc cos (B - C) = 1/2(a^2+b^2+ c^2)​
⬇️ Which equation has a constant of proportionality equal to 1/4?
english! please help!
Funds that banks lend to borrowers come from
2,000 - 61k = 48 In 1962, the population of a bird species was 2,000. The population k years after 1962 was 48, and k satisfies the equation above. Which of the