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
Mrac [35]
2 years ago
13

Solve for x: (x2−2x)2−8 = 7(x2−2x)

Mathematics
2 answers:
Marrrta [24]2 years ago
8 0

Answer:

x1= -2

x2= 1

x3= 4

Step-by-step explanation:

gregori [183]2 years ago
6 0

\\ \sf\longmapsto (x^2-2x)^2-8=7(x^2-2x)

\\ \sf\longmapsto x^4-4x^3+2x^2-8=7x^2-14x

\\ \sf\longmapsto x^4-4x^3-5x^2+14x-8=0

No real roots (pic attached)

You might be interested in
Please solve number 1<br> (and explain)
OleMash [197]

Answer:

The slope is 3/2, and the y-intercept (b) is -1

Step-by-step explanation:

The slope-intercept form is y=mx+b. m is the slope and b is the y-intercept.

6 0
2 years ago
What is the excluded value of x / x^2 +2x -3​
Rzqust [24]

Answer:

x = - 3 and x = 1

Step-by-step explanation:

Given the rational expression

\frac{x}{x^2+2x-3}

The denominator of the expression cannot be zero as this would make the expression undefined. Equating the denominator to zero and solving gives the values that x cannot be, that is

x² + 2x - 3 = 0 ← in standard form

(x + 3)(x - 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x - 1 = 0 ⇒ x = 1

Thus x = 1 and x = - 3 are both excluded values

3 0
2 years ago
Angle of 74° with the ground if the foot of the latter 6.5 feet from the wall, how high on the wall is the ladder?
Pie
Tanα=h/x

h=xtanα, we are told that x=6.5ft and α=74° so

h=6.5tan74 ft

h≈22.67 ft  (to nearest hundredth of a foot)
7 0
3 years ago
HELP ME PLEASE!!! A Kite flying in the air has a 12 feet line attached to it. It's line is pulled and cast an 11 feet shadow. Fi
ZanzabumX [31]

Step-by-step explanation:

By Pythagoras' theorem,

12^2 = 11^2 + height^2

height = ±√12^2 - 11^2 (rej -ve value since height > 0)

height = 16.279 (5sf) = 16.3 (nearest tenth place)

Topic: Pythagoras theorem

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

5 0
3 years ago
HELP ILL GIVE A BRAINIEST
S_A_V [24]

Answer: The first one. 2 to the 20th power over 3 to the 8th power

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • A truck can be rented from Company A for $120 a day plus $0.60 per mile. Company B charges $60 a day plus $0.90 per mile to rent
    12·1 answer
  • What do the asymptotes mean with the tangent function?
    11·2 answers
  • A soft drink company has recently received customer complaints about its one-liter-sized soft drink products. Customers have bee
    14·1 answer
  • Can anyone double check this precalculus question? Will mark brainliest
    5·1 answer
  • 10. How much water can Th swimming pool hold 9 yd. 8 yd.
    7·1 answer
  • . Первый мастер может выполнить задание,
    6·1 answer
  • Sally wants to add to her collection of seashells. She currently has 100 seashells.
    11·2 answers
  • What is the sum of (3x + 5) and (4x - 4)?
    6·1 answer
  • Find the volume of the shape :)​
    14·1 answer
  • In the figure below AOD is a diameter of the circle cetre O. BC is a chord parallel to AD. FE is a tangent to the circle. OF bis
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!