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23-05-2020
Mathematics

contestada

What number can make this trinomial a perfect square trinomial 4x²+_x+81

Respuesta :

MathPhys MathPhys

23-05-2020

Answer:

36

Step-by-step explanation:

4x² + _x + 81

√4 = 2

√81 = 9

2(2)(9) = 36

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