化简 3x^2y+(4x^3-2xy^2)+(-2x^2y+6xy^2)

解答

化简

3 x^{2} y + (4 x^{3} - 2 x y^{2}) + (- 2 x^{2} y + 6 x y^{2})

4 x^{3} + x^{2} y + 4 x y^{2}

求解步骤

3 x^{2} y + (4 x^{3} - 2 x y^{2}) + (- 2 x^{2} y + 6 x y^{2})

化简

3 x^{2} y + (4 x^{3} - 2 x y^{2}) + (- 2 x^{2} y + 6 x y^{2}) : 3 x^{2} y + 4 x^{3} - 2 x y^{2} - 2 x^{2} y + 6 x y^{2}

= 3 x^{2} y + 4 x^{3} - 2 x y^{2} - 2 x^{2} y + 6 x y^{2}

对同类项分组

= 4 x^{3} + 3 x^{2} y - 2 x^{2} y - 2 x y^{2} + 6 x y^{2}

x = 3 + x 2

\frac{x}{5} - \frac{1}{7} = \frac{1}{35}

s im pl i f y \frac{\frac{2}{3} x y ^{5} z ^{3}}{- \frac{1}{6} z ^{3}}

8.2 (x - 7) = 24.6

1200 + 0.06 x > 1600 + 0.04 x