Question

FIND THIS OK please find i will mark brilliant
​

Answer 1

Answer:

the value of x-\dfrac{1}{x} =2\sqrt{35} \text { and } x^2+\dfrac{1}{x^2}=142x−

x

1

=2

35

and x

2

+

x

2

1

=142

Answer 2

Step-by-step explanation:

$(x - \frac{1}{x} ) {}^{2} = ({x + \frac{1}{x} )}^{2} - 4 \times x \times \frac{1}{x} \\ = { \sqrt{12} }^{2} - 4 \\ = 12 - 4 \\ = 8$