化简 (-15/23)+(-19/23)

解答

化简

(- \frac{15}{23}) + (- \frac{19}{23})

- \frac{34}{23}

十进制

- 1.47826 \dots

求解步骤

(- \frac{15}{23}) + (- \frac{19}{23})

(- \frac{15}{23}) + (- \frac{19}{23}) = - \frac{15}{23} - \frac{19}{23}

= - \frac{15}{23} - \frac{19}{23}

- \frac{15}{23} - \frac{19}{23} = - \frac{34}{23}

= - \frac{34}{23}

e x p an d (x - 4) (x + 1)

e x p an d (4 y + 3 z)^{2}

e x p an d (2 x + 3)^{5}

s im pl i f y 32 + 18 - 8

f a c t or m^{4} + m^{2} n^{2} + n^{4}