On a multiple choice test, Larry is asked to find the solutions to the quadratic
MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions
Problem
On a multiple choice test, Larry is asked to find the solutions to the quadratic 2x2−4x−7=0. He has the following choices: He quickly circles the correct answer without actually solving the equation. Determine the correct answer without completing the square or using the quadratic formula.
(A) 1±235
(B) 1±232
(C) 1±233