OpenStax, Elementary Algebra 2e §10.2 Solve Quadratic Equations by Completing the Square · Exercise 19 · Algebra · Quadratics

Solve Quadratic Equations by Completing the Square · Exercise 19

Solve Quadratic Equations of the Form $x^{2} + b x + c = 0$ by Completing the Square

Solve by completing the square.

$x^{2} - 20 x = 21$

~5 minAnswer checked instantly

OpenStax, Elementary Algebra 2e · §10.2 Solve Quadratic Equations by Completing the Square · Exercise 19

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