09-06-2014
Mathematics

contestada

how i can solve this square of binomial (3z+2k)2?

Respuesta :

09-06-2014

You can solve this by the 1st identity which is (a+b)=a^2+b^2+2ab
(3z)^2+(2k)^2+2*3z*2k
=9z^2+4k^2+12kz

Answer Link

09-06-2014

[tex](3z+2k)^2=(3z)^2+2\cdot 3z\cdot 2k +(2k)^2 = 9z^2 + 12kz +4k^2[/tex]

Answer Link

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