Question

expand the following. (a + 1 / a )².​

Answer 1

= (a+1)^2/a^2

= a^2 + 1^2 + 2x1xa/a^2

= a^2 + 2a + 1/a^2

Answer 2

Step-by-step explanation:

${a}^{2} + 2 + \frac{1}{ {a}^{2} }$

Use identify

$(a + b)^{2} = {a}^{2} + 2ab + {b}^{2}$