Question

If one root if the quadratic equation px2 - px + 4=0 is 2, find the other root. Also find the value of p.

Answer 1

Answer:

p(2)²-p(2)+4=0

p(4)-p(2)+4=0

p(4)-p(2)=0-4

p(2)=-4

p=-4/2

p=-2