Factor completely $\huge\cal\color{green}{21x^3y^4}\color{blue}{+ 15x^2y^2}\color{red}{ - 12xy^3}$

3xy(7x^2y^3 + 5x - 4y)

3xy(7x^2y + 5x - 4y^2)

3xy^2(7x^2y + 5x - 4y)

3xy^2(7x^2y^2 + 5x - 4y)

Question

Factor completely $\huge\cal\color{green}{21x^3y^4}\color{blue}{+ 15x^2y^2}\color{red}{ - 12xy^3}$

 3xy(7x^2y^3 + 5x - 4y)

 3xy(7x^2y + 5x - 4y^2)

 3xy^2(7x^2y + 5x - 4y)

 3xy^2(7x^2y^2 + 5x - 4y)

anonymous · Answer

@hartnn

hartnn · Answer

always show your attempt :)
if there is any error, we will help you spot it :)

anonymous · Answer

i think the answer is D

hartnn · Answer

$\huge \color{red}{\checkmark \quad \ddot \smile}$

anonymous · Answer

OMG $\color{red}{\huge\cal~IM~A~GENIUS~}\ddot\smile$

hartnn · Answer

$\huge\frak Agreed$