化简 (sqrt(x+1))*(2x^2+1)

解答

化简

(x + 1) \cdot (2 x^{2} + 1)

(2 x^{2} + 1) x + 1

求解步骤

(x + 1) (2 x^{2} + 1)

使用法则:

(a) = a

(x + 1) = x + 1

= x + 1 (2 x^{2} + 1)

= (2 x^{2} + 1) x + 1

e x p an d A (- 9, - 1, 8) y B (- 7, 5, 6)

s im pl i f y (16 + tan (x)) (16 - tan (x)) + sec^{2} (x)

e x p an d \frac{( x - 2 ) ( x - 3 )}{2}

e x p an d \frac{s + 2}{( ( s + 2 ) ^{2} + 9 ) \cdot ( s + 2 ) ^{2}}

e x p an d \frac{( k - 1 ) ( 3 k ^{6} - k ^{5} - k ^{4} + k ^{3} + k ^{2} + k + 1 )}{k ^{4}}