Zaraahmad Zaraahmad
  • 01-10-2016
  • Mathematics
contestada

Two number that multiply to 24 and add up to minus 11

Respuesta :

caylus
caylus caylus
  • 01-10-2016
Hello,

Let's x and y the 2 numbers

x*y=24
x+y=-11==>x=-11-y
==> (-11-y)y=24
==>-11y-y²-24=0
==>y²+11y+24=0
Δ==11²-4*24=25=5²
y=(-11+5)/2 or y=(-11-5)/2
==>(y=-3 and x=-11+3) or (y=-8 and x=-11+8)

Sol={(-8,-3),(-3,-8)}

The 2 numbers are -3 et -8.

Answer Link
puppysmile
puppysmile puppysmile
  • 02-10-2016
6*4=24
24+11=240 I think?
Hope that it helps you?
Answer Link

Otras preguntas

Help me find the volume please!
Identify m∠ACD. HELP ASAP!!
WHAT'S THE LATEST SMARTPHONE RIGHT NOW???? I'M DOING A PROJECT ABOUT IT AND I NEED YOUR HELPPPPP​
Who did the seminoles join forces with as they fought against forced removal from their land?
Required courses that educate a college student in a broader range of subject areas are called
A particular computer takes 78 nanoseconds to carry out seven sums and ten products. Another computer takes 55 nanoseconds to carry out 4 sums and eight product
how to simplify this algebra​
Ruby is 25 and has a good job at a biotechnology company. She currently has $9,200 in an IRA. She believes her IRA will grow at an annual rate of 7 percent, and
Rearrange the equation below to solve for y. 6x+6y= 24
A calorimeter contains 20.0 mL of water at 15.0 ∘C . When 1.50 g of X (a substance with a molar mass of 76.0 g/mol ) is added, it dissolves via the reaction X(s