OpenStax, Algebra and Trigonometry 2e §12.1 The Ellipse · Try It 2 · Geometry · Conic sections

The Ellipse · Try It 2

Complete the square of a binomial expression.

Use the square root property to solve $x^{2} + 6 x + 9 = 7$ . Use the steps below to guide your work.

ⓐ $x^{2} + 6 x + 9$ is a perfect square trinomial. Factor it into $\left(_ + _\right)^{2}$ .
ⓑ Take a square root of both sides. Remember to have ± on the right side.
ⓒ Solve for x.

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §12.1 The Ellipse · Try It 2

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.