化简 7/(7+7x^7)

解答

化简

\frac{7}{7 + 7 x ^{7}}

\frac{1}{( x + 1 ) ( x ^{6} - x ^{5} + x ^{4} - x ^{3} + x ^{2} - x + 1 )}

求解步骤

\frac{7}{7 + 7 x ^{7}}

因式分解

7 + 7 x^{7} : 7 (x + 1) (x^{6} - x^{5} + x^{4} - x^{3} + x^{2} - x + 1)

= \frac{7}{7 ( x + 1 ) ( x ^{6} - x ^{5} + x ^{4} - x ^{3} + x ^{2} - x + 1 )}

约分:

7

= \frac{1}{( x + 1 ) ( x ^{6} - x ^{5} + x ^{4} - x ^{3} + x ^{2} - x + 1 )}

s im pl i f y 5 x^{4} \cdot (x^{2})^{3} \cdot (2 x)^{2}

s im pl i f y 1 + j^{0}

s im pl i f y \frac{y}{- 0.25}

s im pl i f y \frac{1}{2 x ^{0.1} x 12 0 ^{2}}

e x p an d (x^{2} - 1)^{8}