872350674
872350674
03-11-2015
Mathematics
contestada
expand and simplify(3x+2)^2-(2x-1)^2
Respuesta :
Neuron
Neuron
03-11-2015
If you would like to calculate
(3 * x + 2)^2 - (2 * x - 1)^2
, you can do this using the following steps:
(3 * x + 2)^2 - (2 * x - 1)^2 =
9 * x^2 + 12 * x + 4 - (4 * x^2 - 4 * x + 1) =
9 * x^2 + 12 * x + 4 - 4 * x^2 + 4 * x - 1 =
5 * x^2 + 16 * x + 3
The result is
5 * x^2 + 16 * x + 3.
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