化简 (sqrt((4x+2))-4x)*(sqrt((4x+2))+4x)

解答

化简

((4 x + 2) - 4 x) \cdot ((4 x + 2) + 4 x)

4 x + 2 - 16 x^{2}

求解步骤

(4 x + 2 - 4 x) (4 x + 2 + 4 x)

使用法则:

(a) = a

(4 x + 2) = 4 x + 2

= (4 x + 2 - 4 x) (4 x + 2 + 4 x)

Apply Difference of Two Squares

(4 x + 2 - 4 x) (4 x + 2 + 4 x) : 4 x + 2 - 16 x^{2}

= 4 x + 2 - 16 x^{2}

e x p an d 2 (ln (x + 3) + 1)

e x p an d \frac{1}{6} (3 + ln (2) \frac{9}{2})

e x p an d - \frac{49 x}{( 1 + 7 x ) ^{2}}

e x p an d x (2 x - 2 x - 4)

e x p an d \frac{( ( x + 1 ) ^{2} )}{x ^{2} - s - 6}