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
zmey [24]
3 years ago
5

X^2+x-5=0 completing the square

Mathematics
1 answer:
Bingel [31]3 years ago
3 0
I hope this helps you





x^2+x-5=0


disctirminant = 1^2-4.1. (-5)


disctirminant = 1+20=21



x1= -1+ square root of 21/2


x2= -1- square root of 21/2
You might be interested in
-2/7 - (-4/3) -1/3 what is the answer
seraphim [82]
You have to first make like terms 

-\frac{2}{7} -(-  \frac{4}{3})-  \frac{1}{3} 

**you want the denominator to be 21 

\frac{-6+28-7}{21} =  \frac{15}{21}= \frac{5}{7}
3 0
3 years ago
Can someone help me with this math problem??? Which of the following is equal to 4 and 1 over 2 divided by 2 and 2 over 3?
drek231 [11]
Well. Check out @GiannaSmart0 For the answer ! Great
6 0
3 years ago
If f(x) = 2x2 + 7, find f(-3) =<br> What’s the f(-3)
Allisa [31]

Answer:

replace the x with -3

Step-by-step explanation:

if you ever have f(x) = 'insert equation' and then it says find f('insert number'), you replace what ever variable is after the first 'f' with the number after the second 'f'. hope this helped!

5 0
3 years ago
Read 2 more answers
PLEASE HELP AND EXPLAIN SO I CAN LEARN. THANKS. Indicate whether each item described contains parallel lines or perpendicular li
AfilCa [17]

Answer:

Hey! I think I can help.

Parallel lines are lines that can't meet.Perpendicular lines are lines that can meet.

e.)Since the line at 12 and the line at 9 meets then it is a perpendicular line.

c.)Perpendicular line.

a.)Perpendicular line.

b.)Parallel line.

d.)Depending on how they are faced if the ends of the telephone wire meets the second one then it is perpendicular but if not then it is parallel that's if they are in different directions which they can not meet.Thank you for the question

5 0
3 years ago
What is gif of 18 and 24
babunello [35]

Answer:

6

Step-by-step explanation:

I assume you mean GCF, greatest common factor.

First, write the prime factorizations for each:

18 = 2¹ × 3²

24 = 2³ × 3¹

Next, find what they have in common.  Both have a factor of 2¹ and 3¹.

GCF = 2¹ × 3¹

GCF = 6

The greatest common factor is 6.

6 0
3 years ago
Other questions:
  • Which property of equality justifies step f?
    14·1 answer
  • Help will give brainliest
    5·1 answer
  • Andrew invested $20,000 in mutual funds and received a sum of $35,000 at the end of the investment period. Calculate the ROI. I
    12·2 answers
  • Two cylinders are similar. The volume of the larger cylinder is 343 ft³ and the volume of the smaller cylinder is 125 ​​ft³. The
    7·1 answer
  • Which situation is best modeled with a division expression?
    7·1 answer
  • The volume (V) of water stored in an open tank varies due to evaporation as
    14·2 answers
  • Complete this item Simplify square root 32/5​
    10·2 answers
  • Please help asap.<br> no fake answers or links.<br> picture below.
    12·1 answer
  • work out the equation of the line which passes through the point (-1, 2) and is paralell to the line y = x + 4
    5·1 answer
  • What is the first step in the solution of 3x2+6x=12 by completing the square?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!