Find the value of x in (4^5⋅x+32^2)⋅2^5=2^16⋅x

Find the value of x in (45x+322)⋅25=216x

First we transform everything into powers of 2 as all the numbers involved in this equation are multiples of 2.

||    45 = (22)5 = 22*5= 210

||    32= (25)2 = 22*5= 210
dividing over 25 on both sides and putting the powers of 2 we get
210 x + 210 = 211x ------ 216/25 = 216-5 = 211

we factorise on the left hand side of the equation

210(x+1) = 211 x --------- we divide over 210

x+1 = 2x -------- 211/210 = 211-10 = 2

Take away x on both sides -----> x =1

Answered by Luis C. Maths tutor

5751 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

The air pressure in the cabin of a passenger plane is modelled by the equation: P(x) = 3cos(x/2) - sin(x/2) where x is the altitude. Express P(x) in the form Rcos(x/2 +z) where z is acute and in degrees and then find the maximum pressure


Let f(x) = x * sin(2x). Find the area beneath the graph of y = f(x), bounded by the x-axis, the y-axis and the line x = π/2.


Find the differential of the equation: x^2(2x+5)


Particle A mass 0.4kg and B 0.3kg. They move in opposite direction and collide. Before collision, A had speed 6m/s and B had 2m/s. After collision B had 3m/s and moved in opposite direction. Find speed of A after collision with direction and Impulse on B.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy