Use the drop-down menus to complete each
1 answer:
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First you subtract x² on both sides to get:
0 = 9x + 6 - x² or -x² + 9x + 6 = 0 ------> (ax² + bx + c)
a = -1
b = 9
c = 6
The quadratic formula is:
x =
Now you plug it in.
The answer should be the third one