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
Brut [27]
3 years ago
12

Solve for x in the equation x^2+2x+1=17

Mathematics
2 answers:
Leto [7]3 years ago
5 0
First, subtract 17 on both sides: x²+2x-16=0
this cannot be factored, so use the quadratic formula to solve for x:
b²-4ac=2²-4(10(-16)=4+64=68
√68=2√17
so x=(-2+2√17)/2 or x=(-2-2√17)/2
x=-1+√17 or x=-1-√17
Whitepunk [10]3 years ago
5 0

Answer:

 x=-1+\sqrt{17}   and   x=-1-\sqrt{17}

Step-by-step explanation:

x^2+2x+1=17

To solve for x , we set the right hand side =0

x^2+2x+1=17

Subtract 17 on both sides

x^2+2x-16=0

Now apply quadratic formula

x=\frac{-b+-\sqrt{b^2-4ac}}{2a}

From the given f(x), the value of a=1, b=2, c=-16

Plug in all the values in the formula

x=\frac{-2+-\sqrt{2^2-4(1)(-16)}}{2(1)}

 x=\frac{-2+-\sqrt{68}}{2}

 x=\frac{-2+-2\sqrt{17}}{2}

 x=-1+-\sqrt{17}

 x=-1+\sqrt{17}   and   x=-1-\sqrt{17}

You might be interested in
Why might the range not be the best estimate of variability?
Zinaida [17]
It may be because the range isn't actually considered an average, it's shown using a box and whiskers diagram, Mode is the most common number. Mean is all the numbers added up and divided by the amount of values there are in the adding up process. so overall the range is less useful to show variability as it only shows the lowest and highest number in the data, and not the different individual numbers variety amongst the results 
5 0
3 years ago
Read 2 more answers
The sum of two numbers is 50 and their difference is 4 what are the two numbers
Deffense [45]

Answer:

27 and 23

Step-by-step explanation:

We can solve this problem as a system of equations. X is the first number and Y is the second number.

The first equation is x+y = 50 and the second equation is x-y=4

Now we solve the system, using elimination method:

x+y=50

x-y=4

2x = 54

x = 54/2

x = 27

And from any of the equations we can find Y

27 + y = 50

y = 50 - 27

y = 23

6 0
3 years ago
HURRY I'LL PICK A BRAINLIEST PERSON!!!
mafiozo [28]
Hi!

I believe the answer is D , because the common denominator is 12 .

3 times 4=12
4 times 3=12
2 times 6= 12

You multiply each fraction by 12/1 .

Hope it helps and have a wonderful day !
5 0
2 years ago
Read 2 more answers
Mhanifa Plz help me with this thank you!
Ivanshal [37]

Answer:

D

Step-by-step explanation:

This is an example of the Pythagorean theorem.

In triangle BEH, the sum of the squares of the sides of the two smaller sides, BE and BH is equal to the longest side squared, EH.

8 0
2 years ago
To make hummingbird nectar you must use 4 cups of water and 1 cup of sugar. What is the ratio of water to sugar?
Paladinen [302]
4:1,

there are 4 cups of water for every 1 cup of sugar
5 0
3 years ago
Read 2 more answers
Other questions:
  • How many tens and ones are in the number 15
    6·1 answer
  • 0.00065 in Standard form
    11·2 answers
  • 1A. Identify the opposite/hypotenuse ratio for Angle A. *
    6·1 answer
  • What is the radius of a basketball with a diameter of 22 inches?
    10·1 answer
  • Spam: A researcher reported that 71.8% of all email sent in a recent month was spam. A system manager at a large corporation bel
    15·2 answers
  • A sequence is defined by the formula f(n+1)=f(n)- 3 if f( 4)=22what's is f(1)
    14·1 answer
  • Ribbon A is 1/3 m long. It is 2/5 m shorter than Ribbon B. What's the total length of the two ribbons?
    13·2 answers
  • The school track is 7/8 mile in length. Sherri ran 2/3 mile. How much
    5·1 answer
  • The radius of the circle is 2.5 cm. - Find the circumference of the circle. Round your answer to the nearest centimeter
    12·1 answer
  • Which expression has a value of 1 when x = 2.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!