Question

guys please explain and give an answer to this question for maths.

Find the 2nd one please​

Answer 1

Answer- x+1/x=5

-Accordind to the identity (a) ²+2ab+(b) ²

(x) ²+2(x into 1/x)+(1/x)²=(5)²

x²+2+ 1/x²=25

x²+1/x²=25-2

x²+1/x²=23

Step-by-step explanation:

Plz mark me brainliest..

Answer 2

Answer:

2➡️ 2x+1

p(-½)=0

so q(x)= 2x+1

then

2x+1=0

2x=-1

x=(-1/2)

Answer 3..

( x + 1 /x ) = 5

( x + 1 / x )² = 25

= x² + 1 / x²+ 2 * x * 1/x =25

= x² + 1/x² + 2 = 25

= X² + 1 / x²= 25 - 2 = 23 Ans .