Simplify √(4x^8).

√(4x8) = √4 x √(x8) = 2 x (x8)1/2 = 2x4
Remember that (xn)p= xnp.

DS

Related Maths GCSE answers

All answers ▸

Find x when 2x-3=5


When using trigonometry to calculate side lengths/angles, how do you know which identity to use?


A right-angled triangle has base 7cm and height 6cm. Find it's area.


There are 30 yellow sweets and 10 black sweets in a bag. Two sweets are taken out at random without replacement. Work out the probability that the two sweets are the same colour.