abbysshopping03
abbysshopping03 abbysshopping03
  • 14-05-2020
  • Mathematics
contestada

2^x-2 = 8^2x+1
pls help

Respuesta :

sandybutt
sandybutt sandybutt
  • 14-05-2020

Answer:

8^x

Step-by-step explanation:

8= 2*2*2= 2^3

==> 2^(2x-1) = (2^3)^X)

==> 2^(2x-1) = 2^3x

The bases are equal, then the powers are equal:

==> 2x-1= 3x

==> x=-1

To check:

2^(2x-1)= 8^x

2^(2(-1)-1) = 8^-1

2^(-3)=8^-3

1/ 2^3 = 1/8

1/8 = 1/8

Answer Link

Otras preguntas

A line passes through the points (-1,10) and (3,2). Which shows the graph of this line? PLEASE HELP!!!
What is an equation of the line that passes through the points (3, 1)(3,1) and (6, 6)(6,6)? Put your answer in fully reduced form.
HELPPPPP!!! Will give brainliest For which pair of points can you use this number line to find the distance? 4 2 3 5 6 -2 -1 0 1 7 8 (-4, 1) and (7,4) (-4, 1)
Natural resources are classified as renewable and nonrenewab what is the difference between the two
solve V=1/3bh for b base of the cone
carla has $300 in her bank account. Each time she goes to the atm, she withdraws $20. The amount of money left in her bank account after x atm withdrawls is rep
order from least to greatest 0,413, 0.056, 0.164, and 0.531
Which number is divisible by 2 and 4? 14 18 26 32
Why did Frederick Douglass have a different perspective on schooling than Mark Twain?A. He was denied an education.B. He became a lecturer.C. He grew up without
if f(x) = - 4x + 2, determine f(2)