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Algebra 1 - Unit 9 Vocabulary

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Across
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the values of the unknown variable x, which satisfy the equation.
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the part of the quadratic formula underneath the square root symbol: b²-4ac and tells us whether there are two solutions, one solution, or no solutions.
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___ product property, also called _____-product principle, states that for any real numbers a and b, if ab = 0, then either a equals zero, b equals zero, or both a and b equal zero.
Down
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_________ the square - a method used to solve a quadratic equation by changing the form of the equation so that the left side is a perfect square trinomial.
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an equation containing a single variable of degree 2. Its general form is ax2 + bx + c = 0, where x is the variable and a, b, and c are constants (a ≠ 0)
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Quadratic __________ - a __________ that gives the solutions of the general quadratic equation ax2 + bx + c = 0 and that is usually written in the form x = (-b±√(b^2-4ac))/2a
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________ Root - a factor of a number that, when multiplied by itself, gives the original number.