# Free GRE Practice Questions

Question 1 of 20
ID: GRE-MCQ-1
Section: Quantitative Reasoning - Multiple Choice with one answer
Topics: Algebra; Quadratic equation
Difficulty level: Medium

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If the roots of the equation $x2-16x-612=0$ are $a$ and $b$, what is the value of $a+b$?

A-612
B-16
C0
D16
E612