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Mathematics
Mathematics
Problem
Which of the following quadratic equations has exactly one distinct real solution? A.
9
16
x
2
−
3
x
−
4
=
0
\frac{9}{16}x^2 - 3x - 4 = 0
16
9
x
2
−
3
x
−
4
=
0
B.
9
16
x
2
−
3
x
+
4
=
0
\frac{9}{16}x^2 - 3x + 4 = 0
16
9
x
2
−
3
x
+
4
=
0
C.
16
25
x
2
−
25
=
0
\frac{16}{25}x^2 - 25 = 0
25
16
x
2
−
25
=
0
D.
16
25
x
2
+
25
=
0
\frac{16}{25}x^2 + 25 = 0
25
16
x
2
+
25
=
0
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