If the equations x2+px+q=0 , x2+p'x+q'=0 have a common root, show that it mustbe equal to pq'-p'qq-q' or q-q'p-p'.

If the equations $x^{2} + p x + q = 0, x^{2} + p' x + q' = 0$ have a common root, show that it must

be equal to $\frac{p q' - p' q}{q - q'} o r \frac{q - q'}{p - p'} .$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3

Step - 4