Algebra: Quadratic Equations

#Algebra #grade9 #grade10 #grade11 Solve #quadratic #equations, including those with complex roots, by taking #square roots, completing the square, factoring, and using the quad...

What are the solutions to x^2 = 25 ?

x = 5 only x = –5 only x = 5 and x = –5
What are the solutions to...

x = 3, –5 x = –3, 5 x = 1.5, –5 x = –1.5, 5
What are the solutions to...

x = 1, 21 x = –1, –21 x = 3, 7 x = –3, –7
What are the solutions to...

x = –9 only x = 9 only x = ±9 x = ±9i
What are the solutions to...

2 ± √3 −2 ± √3 3 ± √2 −3 ± √2
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