Question

Factorise : 8a3 – 2a
​

Answer 1

Step-by-step explanation:

8a3 - 2a

2a (4a2 -1 )

2a = 0.

a=0/2

a=0

$4a^{2} - 1 = 0 \\ 4a ^{2} = 1\\ a ^{2} = 1 \div 4 \\ a = \sqrt{1 \div 4 } \\ a = \sqrt{0.25 } \\ a = 5$