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
Related Maths GCSE answers
All answers ▸How do I solve a sum of equations with unknowns in the denominator?
work out the area of a trapezium where the height is 4mm, the top length is 8mm and the bottom length is 12.5mm
State the nth term of the following sequence: 3,7,11,15,19...
Given: h=3t^2, work out the value of h when t=5.