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
vitfil [10]
2 years ago
10

Please help me. 4^(x+1)+2^(x+1)+2^x-1=0

Mathematics
2 answers:
Olin [163]2 years ago
4 0

Answer:

x = -2

Step-by-step explanation:

Nesterboy [21]2 years ago
3 0

Answer:

  • x = -2

Step-by-step explanation:

  • 4^{x+1}+2^{x+1}+2^x-1=0
  • 4*2^{2x}+2*2^x+2^x-1=0
  • 2ˣ = t
  • 4t² + 3t - 1 = 0
  • 4t² + 4t - t - 1 = 0
  • 4t(t + 1) - (t + 1) = 0
  • (t + 1)(4t - 1) = 0
  • t = -1 (discounted as 2ˣ can't be negative)
  • t = 1/4
  • 2ˣ = 1/4
  • 2ˣ = 2⁻²
  • x = -2
You might be interested in
Which is the better deal?
Ne4ueva [31]
I would think the best deal is 5 pizzas for $19.00
6 0
3 years ago
Read 2 more answers
The consumer price index is___.(apex)
klio [65]
Measures change in price levels of market s

7 0
2 years ago
Plz help on all of this these
soldier1979 [14.2K]
7.) 170
8.) 9
9.) 44
10.) -124
11.) -99
12.) 84
13.) 88
14.) -1080
15.) -27
16.) -81
17.) -27
18.) -81
3 0
3 years ago
Help I’m struggling badly in math
Fynjy0 [20]

Answer:

bran to blueberry: 4:1

banana nut to bran: 1 to 2

total to corn: 12 muffins to 5 muffins

bran to total: 1/3

Step-by-step explanation:

hope that helped.

5 0
2 years ago
A figure is rotated and reflected. what can u say about the new figure in relation to the original figure?
mylen [45]
The new figure is formed differently and is not the same as the other ome
8 0
3 years ago
Other questions:
  • Anna has $45 to spend on felt to make banners for an upcoming game. Gold felt costs $5 per yard and blue felt costs $4 per yard.
    14·2 answers
  • Which equations have a negative solution?
    14·2 answers
  • Galvin is graduating from college in eighteen months, but he will need a loan in the amount of $9,875 for his last three semeste
    15·2 answers
  • Please I need help with this question!!
    12·2 answers
  • I am a fraction equivalent to 6/8 my numerator is 16 less than my denominator what fraction am i
    13·1 answer
  • If the 6th term of an A.P. is 46, find the sum of first 11 terms.​
    7·1 answer
  • DO
    10·1 answer
  • Does this graph represent a proportional relationship?<br> Explain.
    15·1 answer
  • The diameter of a sphere with a volume of 121.5 cubic mm is ___ mm.
    10·1 answer
  • Solve for x<br> 7(2x - 5) + 3 - 2x + 8<br> Posted today at 23 pm
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!