Solving Quadratic Equations: Quadratic Formula — Unit test Answers
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Two positive integers are 3 units apart on a number line. Their product is 108.
A
m(m – 3) = 108B
m(m + 3) = 108C
(m + 3)(m – 3) = 108D
(m – 12)(m – 9) = 10822
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Two negative integers are 8 units apart on the number line and have a product of 308.Which equation could be used to determine x, the smaller negative integer?
A
x2 + 8x – 308 = 0B
x2 – 8x + 308 = 0C
x2 + 8x + 308 = 0D
x2 − 8x − 308 = 023
Which is a solution to (x − 2)(x + 10) = 13?
A
x = 3B
x = 8C
x = 10D
x = 1124
In simplest radical form, what are the solutions to the quadratic equation 0 = –3x2 – 4x + 5?Quadratic formula: x =
A
x =
B
x =
C
x =
D
x =
25
A quadratic equation has a discriminant of 12. Which could be the equation?
A
0 = –x2 + 8x + 2B
0 = 2x2 + 6x + 3C
0 = –x2 + 4x + 1D
0 = 4x2 + 2x + 1Did you find these answers helpful?
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