Question

7.
If (x - 5) = 10, find the values of the following:
a) x^2 + 1/x^2
b)x^4 + 1/x^4​

Answer 1

x^2+1 =a+b+c use this formula

Answer 2

Answer:

Step 1 (x - 5 ) = 10

x = 10+5

x= 15

a)Solution

(x^2)+(1/x^2)

(15^2)+(1/15^2)

225 +1/225

50625/225 +1/225

ans 50626/225

b)Solution

(x^4)+(1/x^4)

(15^4)+(1/15^4)

50625+1/50625

2562890625/50625+ 1/50625

Ans 2562890626/50625

very lengthy question pls mark as brainlist