sanociahnoel
10.01.2020 •
Mathematics
Find the value of n such that x^2 -3x +n is a perfect square trinomial
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Ответ:
x^2 -3x +n is a perfect square trinomial : x²-3x+n = (x-a)²
x²-3x+n = x²-2ax+a²
-2a = -3
a² = n
a= 3/2
n = (3/2)²=9/4
Ответ:
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Step-by-step explanation:
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