Question

simplify - (a+1)(a-1)(a^2+1)

Answer 1

Step-by-step explanation:

$(a + 1)(a - 1)( {a}^{2} + 1)$

using identity (a+b)(a-b)=a^2-b^2

$( {a}^{2} - {1}^{2} )( {a}^{2} + 1)$

$( {a}^{2} )^{2} - {1}^{2}$

${a}^{4} - 1$

PLEASE MARK MY ANSWER AS BRAINLIEST.

Answer 2

Answer:

we know that (a+1)(a-1) will be a square-b square.

so (a+1)(a-1)(a square+1) will become:

(a square-1 square)(a square+1)

=(a2-1)(a2+1)

=a4+1