MediumQuadratics

OpenStax, Elementary Algebra 2e §10.5 Graphing Quadratic Equations in Two Variables · Review Exercise 123 · Algebra · Quadratics

Graphing Quadratic Equations in Two Variables · Review Exercise 123

Identify the most appropriate method (Factoring, Square Root, or Quadratic Formula) to use to solve each quadratic equation.

ⓐ $16 r^{2} - 8 r + 1 = 0$
ⓑ $5 t^{2} - 8 t + 3 = 9$
ⓒ $3 (c + 2)^{2} = 15$

~8 minWritten answer · check your work with Lemma

OpenStax, Elementary Algebra 2e · §10.5 Graphing Quadratic Equations in Two Variables · Review Exercise 123

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.