化简 (3x^6)-7+(2x^7)+6-(9x^6)

解答

化简

(3 x^{6}) - 7 + (2 x^{7}) + 6 - (9 x^{6})

2 x^{7} - 6 x^{6} - 1

求解步骤

(3 x^{6}) - 7 + (2 x^{7}) + 6 - (9 x^{6})

化简

(3 x^{6}) - 7 + (2 x^{7}) + 6 - (9 x^{6}) : 3 x^{6} - 7 + 2 x^{7} + 6 - 9 x^{6}

= 3 x^{6} - 7 + 2 x^{7} + 6 - 9 x^{6}

对同类项分组

= 2 x^{7} + 3 x^{6} - 9 x^{6} - 7 + 6

s im pl i f y \frac{( 1 - cos ^{4} ( x ) )}{( tan ( x ) - cot ( x ) )}

s im pl i f y 2 a - b - a (a + b)^{- 1} a + b (a + b)^{- 1}

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

f a c t or 4 a^{2} - 16 b^{2}

f a c t or n + 2 m^{2} + 1 + 2 m^{2} n