21-09-2016
Mathematics

contestada

The expression (2x+1)^2 -2(2x^2-1) is equivalent to:

a) 4x+3
b) 2x+3
c) 3
d) -1

Can you please explain which one it is with work?

Respuesta :

nobillionaireNobley nobillionaireNobley

23-09-2016

(2x + 1)^2 - 2(2x^2 - 1) = 4x^2 + 4x + 1 - 4x^2 + 2 = 4x + 3

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