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Mathematics
Problem
If
9
x
2
+
b
x
+
25
9x^2+bx+25
9
x
2
+
b
x
+
25
is a perfect square trinomial and
b
b
b
is positive, find the value of
b
b
b
. a)
15
15
15
b)
30
30
30
c)
10
10
10
d)
45
45
45
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