Problem preview
A-REI.4.b Warmup M2-006-A05-V02

Solve quadratics by inspection, square roots, completing the square, formula, and factoring; express complex solutions.

Solve a quadratic equation by completing the square

Problem

Solve \(x^{2}-2x-8=0\) by completing the square. Preserve the negative half-coefficient in the binomial and carry both roots through the final shift.

Inside Gozunta

Turn the preview into practice.

More than a preview

Gozunta lets you study this problem—and more than 10,000 others.

Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.

Discover Gozunta Try it now
Four variants of this problem type
Curriculum context
Course
Math II
Standard
A-REI.4.b
Category
Algebra
Domain
Reasoning with Equations and Inequalities
Objective
Solve quadratics by inspection, square roots, completing the square, formula, and factoring; express complex solutions.
Problem type
Solve a quadratic equation by completing the square