Respuesta :

Answer:

Step-by-step explanation:

let number is x.

x^2 - 32 = 4x

=> x^2 -4x -32 = 0

=> x^2 -8x + 4x -32 = 0

=>x(x -8 ) + 4(x -8) = 0

=> (x-8)(x+4) = 0

so, x= 8, -4

so, number is 8

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