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Type: Multiple-Choice
Category: Quadratic Equations and Expressions
Level: Grade 9
Author: Math_Teach2
Last Modified: 7 years ago

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Grade 9 Quadratic Equations and Expressions

Which of the following is NOT a quadratic equation?

$x^2 - 4 = 0$
$-9 + x^2 = 0$
$-7x + 12 = 0$
$-2 + 9x + x^2 = 0$