Question

K² + 4k =5 find K
X=k² and y=k

Answer 1

Answer:

=k2+4k-5=0

=K2+5k-k-5

=k(k+5) -1(k+5)

so, (k-1) (k+5) =0

Either,

=(k-1) =0

=k=1 it is possible

and,

= k+5=0

= k=-5 it is not possible

hence,

the value of k=1