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
Sergeeva-Olga [200]
3 years ago
8

Hi can someone please complete the square step by step. thanks x² + 8x + 1 = 0

Mathematics
1 answer:
mario62 [17]3 years ago
4 0

Answer:

x = -1/9

Step-by-step explanation:

first let's think of x as 1x so than x^2 is basically 1x.

you bring down 8x + 1 = 0 so you have x + 8x + 1 = 0.

than you add x and 8x which equals 9x.

you bring the problem down one more time so 9x + 1 = 0.

you subtract 1 from each side so the 0 becomes because 0 - 1 is -1.

So than you bring the rest of the problem down 9x = -1

Last thing you do is divide 9 from both sides which x = -1/9.

You might be interested in
Simplify 4x - 2y - 3x + 5y
Vikentia [17]
4x - 2y - 3x + 5y = 4x - 3x + 5y - 2y = x + 3y
4 0
3 years ago
What times 25 equals 13107200?
leva [86]

Answer:

524,288

Step-by-step explanation:

3 0
3 years ago
What are the lengths of the legs of a right triangle in which one acute angle measures 19o and the hypotenuse is 15 units long?
WITCHER [35]
x,y-\ lengths\ of\ legs\\\\sin19^\circ=\frac{x}{15}\\\\ sin19^\circ*15=x\\\\0,32*15=x\\\\x=4,8\\\\
y^2+(4,8)^2=15^2\\\\y^2=225-23,04\\\\ y^2=201,96\\\\y=14,2\\\\Legs\ are\ equalt\ to:\ 4,8 \ and\ 14,2.
6 0
4 years ago
a recipe calls for 3 cups of sugar and 9 cups of water.if the recipe is reduced, how many cups of water should be used with 2 cu
fenix001 [56]
Since 3cups = 9cups ... and they are asking how much water would go in 2cups of sugar .. then the answer would be ..
6cups of water

because you cross multiply.
8 0
3 years ago
Which of the following is 3x²/12x simplified?
horrorfan [7]
The third option is the answer
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the next number in the pattern?
    6·2 answers
  • The sum of the measures of the interior angles of a triangle is equal to A. 90 B.180 C. 270 D. 360
    11·2 answers
  • In the diagram, a building casts a 35-ft shadow and a flagpole casts an 8-ft shadow. If the flagpole is 18 ft tall, how tall is
    9·2 answers
  • Six times a number is equal to 16 more than 4 times the number. Find the number.
    11·1 answer
  • Which expression shows the quotient of two terms where one of the terms includes a coefficient of 7?
    5·1 answer
  • Eight less than twice a number is less than three times the number what is the number
    14·1 answer
  • a cylindrical glass holds 130 cubic centimeters of water and has a height of 6cm, what is the diameter of the class?
    15·1 answer
  • Jorge drew an angle.
    10·2 answers
  • 3. A three-bedroom house in Burbville sold for $190,000. If housing prices are expected to increase
    8·1 answer
  • Which is the best estimate for the length of a lady bug?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!