josiebrown
josiebrown
25-04-2017
Mathematics
contestada
Identify the factors of 9x^2+24x+16
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Аноним
Аноним
25-04-2017
Hi friend,
This is a perfect square trinomial.
It can be recognised because it is of the form:
a^2−2ab+b^2=(a−b)^2
with a=3x and b=4
9x2−24x+16=(3x)2−(2⋅(3x)⋅4)+42
=(3x−4)2
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