In finding the roots of `x^(2)+px+q=0` ,if the coefficient of x was taken -7 instead of -8 and the roots were 4 and 3 then the correct roots are

In copying a quadratic equation of the form x^(2)+px+q=0 ,the coefficient of x was wrongly written as -10 in place of -11 and the roots were found to be 4 and 6. find the roots of the correct equation.

If p and q are the roots of x^(2)+px+q=0 then find p.

In copying a quadratic equation of the form x^(2)+px+q=0, a student wrote the coefficients of x incorrectly and the roots were found to be 3 and 10; another student wrote the same equation but he wrote the constant term incorrectly and thus,he found the roots to be 4 and 7 .The roots of the correct equation are

The coefficient of x in the equation x^2+px+q=0 was wrongly written as 17 in place of 13 and the roots thus found were -2 and -15. The roots of the correct equation are (A) 15.-2 (B) -3,-10 (C) -13,30 (D) 4,13

If p and q are the roots of x^2 +px + q = 0 , then which one of the following is correct ?