Question

factorise.
(a) 8x^3-64=​

Answer 1

Answer:

8x3-64

8(x3-8)

8(x3-2^3)

8[(x-2)(2^2+2*x+x^2)]

8[(x-2)(4+2x+x^2)]

Answer 2

Step-by-step explanation:

given 8x^3-64

8 common out

8(x^3-2^3)

.'.a^3- b^3=(a-b)(a^2+ab+b^2)

=8((x-2)(x.2+x.2+2.2)

=8(x-2)(x^2+2x+4)