1. x² + 8x
(Select) 16 8 -16 4

2. x²-9x
(Select) 9/2 - 4.5 81/4 81/2

3. x²+6x=7
(Select) x=6, 7 x=1, 7/6 x=-1,7 x=1,-7

4. x²+4x=21
(Select) x=3,-7 x=3, 7 x=21,1 x=21,-1 x=1

5. 6x=x²-3
(Select) x=3 x=3 ± 2 ¯\/3 x = 6, 3 x=-3 ± 2 ¯\/3

6. x²+5x-6=0
(Select) x = -1,6 x = 3, -2 x = 1, -6 x=-3,2

7. x² - 9x + 8 = 0
(Select) x=1, x=8 x=-1, x=-8 x=2, x=4 x=-2, x=-4

8. 4-6x=x²
(Select) x=1, 4 x=9,2 x = -3 ± ¯\/13 none of the above

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