Question

If x=4+√15 , find the value of x + 1_x​

Answer 1

Answer:

x=2−3⇒x1=2−31=2+3

(x2+x21)=(x+x1)2−2=(2−3+2+3)2−2=14

(x2−x21)=(x−x1)(x+x1)=(4×−23)=−83

Answer 2

Answer:

Full answer is photo below.

Step-by-step explanation:

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