The number of real solutions of is

MATHEMATICS · Single correct · IB Diploma Programme · Mathematics: Analysis and Approaches · Functions · Functions

Problem

The number of real solutions of x2−4x+3+x2−9=4x2−14x+6\sqrt{x^2-4x+3}+\sqrt{x^2-9}=\sqrt{4x^2-14x+6} is (1) one (2) two (3) three (4) None of these

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