How do you multiply $3y^2z(2y^2z + 4yz - y + z)$ ?

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Answer 1 · 2015-06-26T14:13:53

$=color(green)(6y^4z^2+ 12y^3z^2 -3y^3z + color(green)(3y^2z^2)$

$color(green)(3y^2z)(2y^2z+4yz-y+z)$

$=color(green)(3y^2z) . (2y^2z) + color(green)(3y^2z) . (4yz)- color(green)(3y^2z) .( y)+ color(green)(3y^2z) . (z)$

$=color(green)(6y^4z^2+ 12y^3z^2 -3y^3z + color(green)(3y^2z^2)$

How do you multiply 3y^2z(2y^2z + 4yz - y + z)3y^2z(2y^2z + 4yz - y + z)?