Question

factorize (x+1)3-(x-1)3​

Answer 1

do multiply those brackets with outer number...

Answer 2

Step-by-step explanation:

Here is

=> (x+1)³ - (x-1)³

[ (a+b)³ = a³+3a²b+3ab²+b³ ]

[ (a-b)³ = a³-3a²b+3ab²-b³ ]

=> [ x³+3(x)²(1)+3(x)(1)²+(1)³ ] - [ x³-3(x)²(1)+3(x)(1)²-(1)³]

=> x³+3x²+3x+1 - x³+3x²-3x+1

=> 6x²+2

=> 2(3x²+1)

Hope it hlpz...