Question

if x= 9 +4 under root 5 find the value under root x - 1 under root x

Answer 1

Given,

x=9+4

5

=>

x

1

=

9+4

5

1

×

9−4

5

9−4

5

=>

x

1

=9−4

5

Let y=

x

−

x

1

Squaring both sides,

y

2

=x+

x

1

−2

=>y

2

=9+4

5

+9−4

5

−2

y=+4,−4

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Answer 2

Answer:

y =+4 -4

Step-by-step explanation:

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