1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natali [406]
3 years ago
13

What numbers add to 2 and multiply to -56

Mathematics
2 answers:
marta [7]3 years ago
5 0

The numbers are irrational, so they can't be exactly written down
using only digits.

In exact form, they are

     1 + √57
and
     1 - √57 .

In rounded form, they are

     8.54983
and
    -6.54983 .
Ganezh [65]3 years ago
4 0
-x² + 2x - 56 = 0

Use the quadratic formula to get the roots:

x = \frac{-b\pm \sqrt{b^2-4ac}}{2a} where the equation is ax² + bx + c =0

\frac{-b \pm  \sqrt{ b^2 -4( a)(c)} }{2(a)}\\\\  \frac{-2\pm  \sqrt{2^2 -4(-1)(56)} }{2(-1)}\\    \\\frac{-2\pm  \sqrt{228 } }{-2} = \frac{-2\pm  \sqrt{4\times57 } }{-2} \\\\ = \frac{-2\pm  2\sqrt{57 } }{-2} \\\\ = \frac{-1\pm  1\sqrt{57 } }{-1} \\\\ =\boxed{\bf{ 1\pm \sqrt{57 }  }}\\a

The two numbers that add up to 2 and multiply to -56 are 1 + √57 and 1 - √57.
You might be interested in
What the answer i need it asap
mafiozo [28]
30 miles per hour

Good luck on your MAP Test :)
7 0
3 years ago
Can someone help me? you might get a crown
Step2247 [10]

Answer:

2.1 mph

Step-by-step explanation:

7 0
3 years ago
1. ONE AND TWO HUNDREDTHS AS A DÉCIMAl AND FRACTION
astraxan [27]

Answer:

1.02 as a decimal

1 and 1/50 as a fraction

Step-by-step explanation:

5 0
2 years ago
Which factors of -12 add to -1?
beks73 [17]

Answer:

-4 and 3

Step-by-step explanation:

4 0
3 years ago
Please Show the work
Svetradugi [14.3K]

the answer is a) because its the numerator is bigger than the denominator

8 0
3 years ago
Other questions:
  • 2. Describe the process used to solve an equation with variables on both sides.
    6·1 answer
  • William is taking the 25-question, multiple choice American Mathematics Competition. Each question has five answer choices. Will
    10·1 answer
  • Kelly makes nine dollars per hour she has worked eight hours so far this week how much has she made this week so far write an al
    15·1 answer
  • A rectangular farm (6 miles by 2 miles)
    8·2 answers
  • Regina purchased 1.75 pounds of turkey breast from her local deli for $5.99 per pound. To the nearest cent, how much did she spe
    9·2 answers
  • How much would $400 be worth after 6 years, if it were invested at 2% interest compounded annually? (Use the formula below and r
    8·1 answer
  • Which expression is not an integer? A) -15 B) 6/14 C) 0 D) 12/6
    9·2 answers
  • Rates Lin, Diego, and Elena are competing to see who can finish their book the fastest. Lin read the first 54 pages from a 270-p
    14·1 answer
  • Plz help im bad at math
    10·1 answer
  • What is the solution to this equation?<br> X- 17 = -5
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!