化简 (a+sqrt(b))(a-sqrt(b))

解答

化简

(a + b) (a - b)

a^{2} - b

求解步骤

(a + b) (a - b)

Apply Difference of Two Squares

(a + b) (a - b) : a^{2} - b

= a^{2} - b

e x p an d - \frac{cos ( θ ) ( - cos ( θ ) + 2 ) - sin ^{2} ( θ )}{2 sin ( θ )}

s im pl i f y (2 x + 5)^{2}

e x p an d x (x + 3)^{2}

e x p an d 22 (33 + 57)

e x p an d - \frac{d}{d x} ((b + 2 c m) \cdot e^{- y x})