Question

in each of the examples given below determine whether the values given against each of the quadratic equation are the roots of the equation or not ​

Answer 1

Answer:

ha what is the answer I not understand iam si aorry

Answer 2

Answer:

$x^2+4x - 5=0$

given values of x=1,−1

when $x = 1$

       $1^2 + 4 (1) - 5\\\\1 + 4 - 5 \\\\5 - 5 = 0$satisfy the equation

when $x$ = -1

         $( -1)^2 +4 (-1) - 5\\\\1 -4-5\\\\1- 9 \\\\-8$does not satisfy the equation

Therefore x=1 is only the root of given equation