Question

What value/s can x take in the expression k(x – 10) (x + 10) = 0 where k is any real number.

Answer 1

Answer:

k(x-10)(x+10)=0

x square -100=0 or k=0

x= 10 or -10 or k=0

so, for x= 10 or -10 , above expression is equal to zero