Question

If x = 9, Find the value of (x)²+(¹-x)²​

Answer 1

Step-by-step explanation:

x−

x

1

We have,

(x−

x

1

)

2

=x

2

−2×x×

x

1

+

x

2

1

⇒(x−

x

1

)

2

=x

2

−2+

x

2

1

⇒(x−

x

1

)

2

=x

2

+

x

2

1

−2

⇒(x−

x

1

)

2

=27−2[∵x

2

+

x

2

1

=27 given]

⇒(x−

x

1

)

2

=25⇒(x−

x

1

)

2

⇒x−

x

1

=±5

[Taking square root of both sides]

Answer 2

Answer:

see the answer in the image