Q14 of 134 Page 4


Determine whether the given value of x is a solution of the given equationor not: x 2+ x + 1 = 0; x = -1.


x 2 + x + 1 = 0
Let x = -1

⇒ (-1) 2 + (-1) + 1

= 1 – 1 + 1

= 1.
Therefore, the given value of x is not a solution of the given equation.

More from this chapter

All 134 →
12
Determine whether the given value of x is a solution of the given equationor not: 2x 2– 6x + 3 = 0; x =https://gs-post-images.s3.amazonaws.com/user_files/63094/15042/images/extra-4_files/Image1139.gif .
13
Determine whether the given value of x is a solution of the given equationor not: (2x + 3)(3x - 2) = 0; x =https://gs-post-images.s3.amazonaws.com/user_files/63094/15042/images/extra-4_files/Image1140.gif .
15
Determine whether the given values of x are solutions of the givenequation or not:
x 2+ 6x + 5 = 0; x = -1, x = -5.
 16
Determine whether the given values of x are solutions of the givenequation or not: 9x 2- 3x - 2 = 0; x = -https://gs-post-images.s3.amazonaws.com/user_files/63094/15042/images/extra-4_files/Image1157.gif , x=https://gs-post-images.s3.amazonaws.com/user_files/63094/15042/images/extra-4_files/Image1140.gif .