clinky89 clinky89
  • 04-02-2019
  • Mathematics
contestada

How do u solve to get x?

How do u solve to get x class=

Respuesta :

mathecoach
mathecoach mathecoach
  • 04-02-2019

Step-by-step explanation:

2^(2x) - 5(2^x) = -4

(2^x)^2 - 5(2^x) = -4

Substitute 2^x = z --> x = ln(z)/ln(2)

z^2 - 5z = -4

z^2 - 5z + 4 = 0

(z - 1)(z - 4) = 0

z = 1 --> x = ln(1)/ln(2) = 0

z = 4 --> x = ln(4)/ln(2) = 2


Answer Link

Otras preguntas

If triangleABC is a right angle triangle at C.then what is the value of cos(A+B)
A bag has 3 balls: 1 orange (0), 1 green (G), and 1 blue (B). A coin has 2 sides: heads (H) and tails (T). You randomly pick a ball and toss a coin. What is the
In need of help with this multiple choice question above this.
F(x)=x^2. What is g(x)?
Which of the following bones make(s) contact with some of the ribs? A. humerus B. phalanges C. ulna D. scapula
ReWhich detail can a reader learn from the play The Diary of Anne Frank that the reader cannot learn from The Diary of a Young Girl? how Anne feels about going
Does CH3F have a higher boiling point than BRF?
Which picture shows the inverse, f −1, of the function shown? Domain: 8, 10, 12. Range: 6, 9, 3. 8 goes to 6; 10 goes to 9; 12 goes to 3. CLEAR CHECK Inverse of
Here is a rule for generating a sequence; 3n+10 What is the 150th term of the sequence generate by this rule?​
3. Which of the following is the best way to combine these two sentences: I lost my watch on the way to work. I don't like my job very much. O A. The sentences