Westonci.ca is the premier destination for reliable answers to your questions, brought to you by a community of experts. Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Find all values of x at which the curve has a horizontal tangent
y=x³-2x²-7x+3
Write your answers as exact values (not decimal approximations).