Question

x2
In each of the following, determine whether the given numbers are roots of the given
equations or not:
(i) x2 - x + 1 = 0; 1, -1
​

Answer 1

Answer:

no it is not the root of given number bcoz when we square it

Step-by-step explanation:

using 1

1^2-1+1=0

1-1+1=0

1=0

hence proved

using-1

-1^2-(-1)+(-1)=0

1+1-1=0

2-1=0

1=0

hence proved

so it is not the square root of given numbers