化简 (1-sqrt(2-x))*(1+sqrt(2-x))

解答

化简

(1 - 2 - x) \cdot (1 + 2 - x)

- 1 + x

求解步骤

(1 - 2 - x) (1 + 2 - x)

Apply Difference of Two Squares

(1 - 2 - x) (1 + 2 - x) : - 1 + x

= - 1 + x

s im pl i f y (- 5 h + 2 + 20) (1 + h + 2)

e x p an d (2 x + \frac{1}{4 x})^{20}

e x p an d x^{3} (sin (y) - x)^{2}

e x p an d \frac{( 2 \cdot s ^{2} + 6 \cdot s + 5 )}{( s + 1 ) ^{2} \cdot ( s + 2 )}

e x p an d \frac{30 x ^{2}}{( 1 + x ^{2} ) ^{2}}