化简 (7z^3+4z-1)+(2z^2-6z+2)

解答

化简

(7 z^{3} + 4 z - 1) + (2 z^{2} - 6 z + 2)

7 z^{3} + 2 z^{2} - 2 z + 1

求解步骤

(7 z^{3} + 4 z - 1) + (2 z^{2} - 6 z + 2)

化简

(7 z^{3} + 4 z - 1) + (2 z^{2} - 6 z + 2) : 7 z^{3} + 4 z - 1 + 2 z^{2} - 6 z + 2

= 7 z^{3} + 4 z - 1 + 2 z^{2} - 6 z + 2

对同类项分组

= 7 z^{3} + 2 z^{2} + 4 z - 6 z - 1 + 2

s im pl i f y \frac{11}{- 2}

s im pl i f y \frac{1}{x 1 + x} - \frac{1}{x}

e x p an d 2 (3 x + 7)

s im pl i f y \frac{6 x ^{2}}{x ( x - 5 )} \cdot \frac{x - 5}{8 ( x + 3 )}

s im pl i f y lo g_{2} (8192)