EJay111
EJay111
05-02-2017
Mathematics
contestada
Simplify fully: (2x+3)^2 - (2x-3)^2
Respuesta :
MaliaHale
MaliaHale
05-02-2017
(2x+3)^2 - (2x-3)^2=(2x+3)*(2x+3)-(2x-3)*(2x-3)=(4x^2+12x+9)-(4x^2-12x+9)=4x^2+12x+9-4x^2+12x-9=24x
So the answer is 24x
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