What is 64^(2/3)?

When the index of a number is a fraction such as 2/3, first take the cubic root, then square the number. For example:
641/3= cube root of 64(641/3)2 = 642/3
642/3 =( 641/3)2 = (4)2 = 16

JT

Related Maths GCSE answers

All answers ▸

Solve (x+10)(x-16)=0


Rearrange the following formula to make x the subject. y=4x-7


Solve the equations y = x + 1 and y = x^2 - 3x + 4 simultaneously.


Solve algebraically the simultaneous equations 3x + 2y = 15 and 2x + 4y = 10