How do you calculate a^5 x a^16 / a^4?

When each term has the same base, add the indices that are multiplied. Then subtract the indices that are divided.

a^5 x a^16 / a^ 4 = a^(5+16) / a^4 

                            = a^ 21 / a^4

                            = a^(21-4)

                            = a^17

EP
Answered by Elliot P. Maths tutor

3922 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do I 'simplify' a surd?


Solve, using the quadratic formula, the equation x^2 +2x=35


The equation of the line L1 is y=3x–2. The equation of the line L2 is 3y–9x+5=0. Show that these two lines are parallel.


Solve algebraically: 6a + b = 16 5a - 2b = 19


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning