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Mathematics
Mathematics
Problem
For which of the following quadratic polynomials does the graph NOT intersect the
x
x
x
–axis? a)
x
2
−
5
x
+
6
x^{2}-5x+6
x
2
−
5
x
+
6
b)
x
2
−
4
x
+
4
x^{2}-4x+4
x
2
−
4
x
+
4
c)
x
2
+
4
x
+
5
x^{2}+4x+5
x
2
+
4
x
+
5
d)
x
2
+
3
x
+
2
x^{2}+3x+2
x
2
+
3
x
+
2
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