展开 (x^{1/2}-1)(x^{1/2}+1)

解答

展开

(x^{\frac{1}{2}} - 1) (x^{\frac{1}{2}} + 1)

x - 1

求解步骤

(x^{\frac{1}{2}} - 1) (x^{\frac{1}{2}} + 1)

Apply Difference of Two Squares

(x^{\frac{1}{2}} - 1) (x^{\frac{1}{2}} + 1) : x - 1

= x - 1

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

e x p an d (sec (x) + csc (x)) (cos (x) - sin (x))

e x p an d (- 7 sin (x) + 7 sin (7 x))^{2}

e x p an d \frac{1}{( x - a ) ( x - b )}

e x p an d (5 x + y)^{6}