Algebra 1 section 10.4
5
ALGEBRA 1 SECTION 10.4 Use Square Roots to Solve Quadratic Equations Big Idea: Solve quadratic equations Essential Question: How do you solve a quadratic equation by finding square roots?
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Big Idea: Solve quadratic equations Essential Question: How do you solve a quadratic equation by finding square roots?. Algebra 1 section 10.4. Use Square Roots to Solve Quadratic Equations. Solving Quadratic Equations by Taking Square Roots. Solving x 2 = d by Taking Square Roots - PowerPoint PPT Presentation
Transcript of Algebra 1 section 10.4
ALGEBRA 1SECTION 10.4Use Square Roots to Solve Quadratic EquationsBig Idea: Solve quadratic
equationsEssential Question: How do you solve a quadratic equation by finding square roots?
Solving Quadratic Equations by Taking Square Roots
Solving x2 = d by Taking Square Roots If d > 0, then x2 = d has two solutions:
If d = 0, then x2 = d has one solution:
If d < 0, then x2 = d has no solution.
dx
0x
Examples
Solve the following quadratic equations.a) c)
b) d)
82 2 x 5122 b
18182 m 273 2 x
Examples
Solve the following quadratic equations.a) b)94 2 z 4925 2 s
Examples
Solve the following quadratic equations.a) c)
b) d)
18)2(2 2 x42)4(6 2 x
28)3(4 2 x 24)5(3 2 x