Question

(x+2)^3-(x-2)^3 factorise

Answer 1

Hey dear!!


Here is yr answer......

=> (x+2)³ - (x-2)³


[ (a+b)³ = a³+3a²b+3ab²+b³ ]

[ (a-b)³ = a³-3a²b+3ab² -b³ ]


a = x, b = 2


=> [ x³+3(x)²(2)+3(x)(2)²+2³ ] - [ x³-3(x)²(2)+3(x)(2)2-2³ ]

=> x³+6x²+12x+8 - x³+6x²-12x-8

=> 12x²


Hope it hlpz....