Question

1) (a + 1) (a – 1) + 1​

Answer 1

Answer:

here is ur answer ....

Step-by-step explanation:

a2+b2= (a+b) (a-b) using this formula

(a2-1^2)+1

Answer 2

Answer:

${a}^{2}$

Step-by-step explanation:

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

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

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

${a}^{2}$