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## Quadratic Roots - Practice #2

1.
Find the roots. $x^2 + 8x + 12 = 0$
1. 2, -6
2. -2, 6
3. -2, -6
4. 2, 6
2.
Find the roots of $x^2 - 5x - 6 = 0.$
1. -1, 6
2. -3, 2
3. -6, 1
4. -2, 3
3.
Which quadratic equation has roots -2 and 3?
1. $x^2+x+6=0$
2. $x^2-x-6=0$
3. $x^2-6x+1=0$
4. $x^2+x-6=0$
4.
Find the roots of $x^2 - 8x + 15 = 0.$
1. 3, 5
2. -3, 5
3. 3, -5
4. -3, -5
5.
Find the roots. $-2x^2 + 6x + 56 = 0$
1. 4, 7
2. -4, -7
3. -4, 7
4. 4, -7
6.
Which equation has roots at -6 and $1/5$ ?
1. $0=5x^2-29x-6$
2. $0=5x^2+31x+6$
3. $0=5x^2+29x-6$
4. $0=5x^2-31x+6$
7.
Find the roots. $x^2 + 10x - 11 = 0$
1. 1, -11
2. -1, 11
3. 1, 11
4. -1, -11
8.
Find the roots of $2x^2 + 5x - 3 = 0.$
1. -2, 3
2. 2, -3
3. 1/2, -3
4. -1/2, 3
9.
What are the roots of the equation $(x-2)(x+5)=0$?
1. 2 and 5
2. 2 and -5
3. -2 and -5
4. -2 and 5
10.
Find the roots. $x^2 -x - 72= 0$
1. 8, 9
2. -8, -9
3. -8, 9
4. 8, -9
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