-3(0)+y=-4

解答

- 3 (0) + y = - 4

y = - 4

求解步骤

- 3 (0) + y = - 4

去除括号:

(a) = a

- 3 \cdot 0 + y = - 4

使用法则

0 \cdot a = 0

- 0 + y = - 4

- 0 + y = y

y = - 4

x^{2} - 6 x + 5 = 0

- \frac{6}{5} (4 - x) \leq - 4 (x + \frac{1}{2})

99 = - 16 (t) (t) + 80 (t) + 3

2 x^{2} - 4 x - 5 = 0

f a c t or 10 a^{4} - a^{3} - 21 a^{2}