Question

1️⃣ x² + 2x –1= 0
2️⃣ x² – x – 2 = 0
3️⃣ x² – 2x + 1= 0
4️⃣ x² + x + 2 = 0​​

Answer 1

Answer:

Given: quadratic equation x

2

−2x+1=0

To find the value of x+

x

1

x

2

−2x+1=0

⇒x

2

+1=2x

⇒

x

x

2

+1

=2

⇒x+

x

1

=2