Question

Please give answer with full explanation ​

Answer 1

Answer:

x+1/x= 12

so, x^2+1/x^2= 12^2

= 144

Answer 2

Step-by-step explanation:

• taking square on both sides

(x+1 )²=12²

x

• opening square

x²+2(x)(1/x)+(1/x)²=12²

• cancel x with 1/x

x²+2+1/x²=144

x²+1/x²=144-2

x²+1/x²=142