Which equation has the components of 0 = x2 – 9x – 20 inserted into the quadratic formula correctly?
WE
Ox= -90/(-9)2 - 4(1)(-20)
2(1)
ht
x = 9:/(-932. - 4(1)(20)
ON
ay lead to hear
m
2(1)
ARE T
HE
x = 91V(-9)2 - 4(1)(-20)
2(1)
2(1)
O
x
=
-91V (-9)2 + 4(1)(-20)
2(1)

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