化简 (2sqrt(x)-4)(2sqrt(x)+4)

解答

化简

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

4 x - 16

求解步骤

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

Apply Difference of Two Squares

(2 x - 4) (2 x + 4) : 4 x - 16

= 4 x - 16

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

s im pl i f y (2 x + y) (3 x - 5 y)

e x p an d \frac{4 n ( - 1 ) ^{n} + 2 n ( - 1 ) ^{n - 1} - ( - 1 ) ^{n - 1} - 1}{4}

e x p an d \frac{5}{( x - 5 ) ( x ^{2} - 9 s + 20 )}

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