Question

if ( x+1)³ = 8 , find (x+1)²​

Answer 1

(x+1)³ = 8

Making the powers same

(x+1)³ = 2³

Comparing the powers ,

So ,

x+1 =2

x= 2-1

$\boxed{\boxed{\sf x=1}}$

So ,

(x+1)²

=(1+1)²

= (2)²

=4