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
chubhunter [2.5K]
3 years ago
8

X2+5x=3x+11 and solve by completing the square

Mathematics
1 answer:
Butoxors [25]3 years ago
7 0
x^2+5x=3x+11\\
x^2+2x-11=0\\
x^2+2x+1-12=0\\
(x+1)^2=12\\
x+1=\sqrt{12} \vee x+1=-\sqrt{12}\\
x=-1+2\sqrt3 \vee x=-1-2\sqrt3
You might be interested in
How many hours of digging does it take for the depth of the hole to reach -28 feet
kirill [66]
Digging -28 would take 16 hours because 14 times 2 equals 28 and 8 times 2 equals 16 so answer is 16
6 0
3 years ago
Round 492.3069 to the nearest thousandth
Llana [10]
The answer is 492.307
The number after the thousandths is 9 - greater than 5 - so we round 6 up to 7.
4 0
3 years ago
Tony will run at most 31 miles this week. So far, he has run 20 miles. What are the possible numbers of additional miles he will
Misha Larkins [42]

Answer:

t=11

Step-by-step explanation:

31-20=11

so 11 miles left

5 0
3 years ago
6 - 8x = 6x - 9x + 11
mars1129 [50]

6-8x=-3x+11

-8x+3x=11-6

-5x=5

x=-1

The first step is to isolate the variable, then you solve. Hope this helps, brainliest if you can.

6 0
3 years ago
Read 2 more answers
2*8*5=2*5*8 identify the property that is shown
ira [324]
The property shown is commutative multiplication.  This property says that the product of two factors is not affected by the order in which they're multiplied.  In this case, the product remains the same i.e.,  2*8*5 = 80 while 2*5*8 <em>also </em>equals 80.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Divide.
    15·1 answer
  • A locksmith worked 32 hours and earned $480, which included some compensation for paid time off. If his true hourly wage is $2 p
    6·2 answers
  • : Use the 4 Steps in Problem Solving. Solve the problem using at least two different strategies and show your work for each stra
    10·1 answer
  • The concentration of platinum in a necklace is 7%. The necklace weighs 16 g. Find the amount of platinum in the necklace.
    11·1 answer
  • To get to school each morning, Luis takes a scooter 12.97 kilometers and a car 5.63 kilometers. In total, the journey takes 51.4
    13·1 answer
  • Which statement is correct?
    11·1 answer
  • 12.7, 12 3/5, 12 3/4 greatest to lest
    13·1 answer
  • Simplify: 213 base five + 1111 base five​
    12·1 answer
  • What will be the answer?
    11·1 answer
  • How can i prove this property to be true for all values of n, using mathematical induction.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!