elagoz
elagoz
02-10-2017
Mathematics
contestada
How can I solve this
Respuesta :
Аноним
Аноним
02-10-2017
4 x^2 - 32 = 8x
-8x -8x
4x^2 - 8x - 32 = 0
Factor the expression ...
4 ( x+2) ( x - 4) = 0
Set the factors equal to 0 ...
x + 2 = 0 x - 4 = 0
-2 -2 +4 +4
x = - 2 or x = 4
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