Quadratic Equations

1. 1Which of the following equations has both x = −5 and x = 9 as solutions?

   1. Ax − 9 = x + 5
   2. B(x − 5)(x − 9) = 0
   3. C(x − 5)(x + 9) = 0
   4. D(x + 5)(x + 9) = 0
   5. E(x + 5)(x − 9) = 0
2. 2What values of x are solutions for x^2 − 5x = 14?

   1. A0 and 2
   2. B–7 and 2
   3. C–2 and 7
   4. D–2 and 0
   5. E9 and 14
3. 3The expression (5x − 1)(2x + 3) is equivalent to which of the following?

   1. A10x^2 + 13x + 2
   2. B10x^2 + 2
   3. C10x^2 + 17x − 3
   4. D10x^2 − 3
   5. E10x^2 + 13x − 3
4. 4Which of the following methods is needed to solve a quadratic equation that it set equal to zero?

   1. ASubtracting
   2. BFactoring
   3. CFoiling
   4. DAdding
   5. EMultiplying
5. 5Which of the following equations has both x = -5 and x = 9 as solutions?

   1. A(x + 5)(x - 9) = 0
   2. B(x + 5)(x + 9) = 0
   3. Cx - 9 = x + 5
   4. D(x - 5)(x - 9) = 0
   5. E(x - 5)(x + 9) = 0

Description

ACT Math Quiz on Quadratic Equations, created by John Doaks on 28/02/2017.

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John Doaks

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English

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Created on 28 Feb 2017 · updated on 6 Mar 2017

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