26-11-2020
Mathematics

contestada

For what values of k is 9x^2+k+16 a perfect square?

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xenia168 xenia168

26-11-2020

Answer:

24x

Step-by-step explanation:

a² ± 2ab + b² = (a ± b)²

(3x)² + k + 4² = (3x)² + 2(3x)(4) + 4²

k = 24x

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