The set of solutions for the equation $(x^2-25)^2=x^2-10x+25$ contains how many real numbers?

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Sun Dec 26, 2021 9:31 am

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The set of solutions for the equation $(x^2-25)^2=x^2-10x+25$ contains how many real numbers?

A. 0
B. 1
C. 2
D. 3
E. 4

Answer: D

Source: Official Guide

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Source: Beat The GMAT — Problem Solving | Sun Dec 26, 2021 9:31 am

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