化简 (q+sqrt(2))(q-sqrt(2))

解答

化简

(q + 2) (q - 2)

q^{2} - 2

求解步骤

(q + 2) (q - 2)

Apply Difference of Two Squares

(q + 2) (q - 2) : q^{2} - 2

= q^{2} - 2

e x p an d (e^{t} cos (t) - e^{t} sin (t))^{2}

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

s im pl i f y (1 + i)^{7}

s im pl i f y (1 + 3 i)^{4}

e x p an d (y^{2} - 2 x y + 6) d x - (x^{2} - 2 x y + 2) d y