Roots of Equation
Source:
February 11, 2009
algebrapolynomialabsolute value
Problem Statement
Two numbers whose sum is and the absolute value of whose difference is are roots of the equation:
(A)\ x^2\minus{}6x\plus{}7\equal{}0 \qquad
(B)\ x^2\minus{}6x\minus{}7\equal{}0 \qquad
(C)\ x^2\plus{}6x\minus{}8\equal{}0 \\
(D)\ x^2\minus{}6x\plus{}8\equal{}0 \qquad
(E)\ x^2\plus{}6x\minus{}7\equal{}0