Question

sabendo que A.B = C+D determine o monômio D sendo A=2 x2 y3 B=-4 x y C=-14 x3 y4

Answer 1

$A.B=C+D~~~~~~~~~~sendo:\\ \\ A=2x^{2} y^{3} \\ \\ B=-4xy\\ \\ C=14x^{3} y^{4} \\ \\ D=?\\ \\ D=2x^{2} y^{3} .(-4xy)-14x^{3} y^{4} \\ \\ D=-8x^{3} y^{4} -14x^{3} y^{4} \\ \\ D=-22x^{3} y^{4}$